The Insect pest survey bulletin

bIATE 1LANTBOA.


THE INSECT PEST SURVEY

BULLETIN



A periodical review of entomological conditions. throughout the United States
issued on the first of each month from March to December, inclusive.


Volume 11


April 1, 1931.


Number 2


BUREAU


OF ENTOMOLOGY


UNITED STATES


DEPARTMENT OF


AGRICULTURE


AND


THE STATE ENTOMOLOGICAL

AGENCIES COOPERATING



LIBRARY
;TATE PLANT BOARD















Digitized by the Internet Archive
in 2013










http://archive.org/details/insect1931 no2







INSECT PEST SURVEY BULLETIN


Vol. 11 April 1, 1931 No. 2


OTST.,T .-T -- :-' LOGICAL FET1LT:J F THI 3 r-' T--" STATES

FOR MARCH, 1931.

We wish to call the attention of our readers to the reports on insect
conditions in tropical k'erican countries which v"> are introducing in this
volmne of the Survey Bulletin. In the first number of this volu-re insect
conditions in Porto Rico were re-ported by U. D. Leonard, and Marston ratess
gave a report on insect pests of Honduras and Guatemala. In this number we
have reports from Porto Rico, Honduras, Gua'-T.,l L, and c:.cico. The cos-no-
politan aspect that entomology has assumed makes these contributions extreme-
ly valuable.

The Hessian fly is reported as com-r -ratively scarce in Virginia and
Ohio- On the other hand in western and southeastern Iowa there a-opears to be
a very heavy infestation.

Indications of possible chinch bug trouble have been observed in c central
Illinois, central Missouri, and southeastern Kansas.

The first observation of e.;s of the corn ear worm was reported from
Galveston County, Texas, on February 10.

Local damage to -oeas, vetch, and alfalfa by the pea aphid was reported
from the Salt River Valley of Arizona and the Willamette Valley of Oregon.

Eggs of fruit a-hids arpcr to be unusually scarce throughout the en-
tire eastern part of the United States, westward to Kansas.

Throughout the Middle Atlantic and South Atlantic States the codling
moth is abnormally abundant. The first observation of pupation was reported
March 30 from South Carolina.

Throughout the ITevw England and Middle Atlantic States the eastern tent
caterpillar is not numerous. On the other hand, reports of unusual numbers
of this insect have been received from Ar'-.noLas and Texas. By the 22d of
March caterpillars were about fall grorn in the vicinity of College Station,
Tex., and eggs were hatchinr.- on March 12 at rayette ville, Ark.

The San Jose scale is anjrently increasing in the Middle Atlantic
States and the East Centr,-; States. A verj high winter survival is reported
from central Illinois running from 60 to 7) per cent, while in this district
a normal survival is only from 25 to 30 per cent. Survival was also high in
the Great Basin section.

The Euro-oean red mite is reported as unusually ab.'-ndrnt in IT,' ln.;land
and very scarce throughout the Middle Atlantic States.


-4I-









By March 27, approximately 7 per cent of the overwintering larvae of the
oriental fruit moth had pu-pated at Thomaston, Ga., while we have a report of
the emergence of this insect in cages in South Carolina on March 9.

The first overwintering adult of the plum curculio was collected in an
orchard at Thomaston, Ga., March 25. Last year the curculio was first ob-
served at this place on March 17. At this time last year over a thousand
beetles were collected while only one was collected March 25 this year.
Petals were falling from peach trees of the Hiley and Elberta varieties on
this date and this advance of the peach crop as comp-ared with the curculio
emergence may make it possible to harvest Elberta peaches before the second
brood ap-ears. The plum curculio is also e-m:rging later than usual in north-
ern Flor' da.

Adults of the pear psylla were observed on March 22 at Amherst, Mass.

The green citrus aphid is doing serious damage on the lower east coast
of Florida, and there are occasional heavily infested trees as far north as
Marion County. Present indications are, however, that the damage will be
light this year.

The cottony-cushion scale is again appearing in scattered infestations
in the Salt River Valley of Arizona.

The vegetable weevil is spreading around the Gulf of Mexico, having
been reported from four counties in Teza3. and four additional counties in
Florida.

The western s-ootted cucumber beetle left hibernation quarters near
Forest Grove, Oreg., January 25, practically a month earlier than last year.
In spite of this early issuance, egg developmentt seems later than at this time
last year. In March the adults were very numerous in Austrian winter peasp
all specimens observed were females.

The first Colorado potato beetles reported this season were from Biloxi,
Miss., and College Station, Tex., March 21.

The cabbage aphid is unusually rLb.'-id-nt in the vicinity of Norfolk, Va.,
and in parts of South Carolina.

The beet leafhopper is reported as very abundant in the Lewis Falls dis-
trict of Idaho. Winter mortality appears to have been very light in this
territory.

The California tent caterpillar is extremely prevalent around Phoenix,
Ariz., this year, where it is defoliating cottonwood trees and severely in-
juring apricots.

Th:'. birch leaf-mining sawfly, Phyllotoma nemorata Fallen, is reported
from Essex County in iJew York, where it seems to be ,ell established.







-45-


GRAS S770?P2RS (Acrididae)


'est Virginia


Florida


South Dakota


Uebra ska


Kansas



Mi s souri


Mississippi


Al abaia



Wyomiing


Arizona


L. M. Peairs (Ya:arch 24): Grasshoppers are -noder .tely abundant
at Morgantown, the overwinterin," for-s bin- active.

J. R. 'Jatson (March 21): Grasshoppers are modern tely bundr-nt -
about as usmal.

H. C. Severin ('..rch 23): 7e e:-:y-,t -sore cresshopner trouble
over the entire State than we had last year. Sone ottbrea are
expected in south central South Dakot.

M. H. Swen2. (March 20): S s of :-'rhoppers, '7elanopTlus sp.
are moderately a ,t.

H. R. Br.-')n ('arch 20O): -r ..;s.o. -rs '. bivittatus Say and
M. differentials Tl-os., re 'r">!r.te.y bundant in the western
half of Iowa.

L. Haseman .(March 23): Gr-sshoppers are moderrtely abui-.-'-:t at
Columbia. Those reported as h;!tchin; early in the year in central
Missouri have -oroved to be a species of Oedipodinae. 1Not infre-
quently we find partly grown ny'nois of this sm-ocis -resent in
sunny places before the first of ""-'ch. At the present ti-ne,
March 23, ny-nnhs 't Colnmbia were found ouite abundant in lavns,
T,-7idiows, and -ra)- res.

R. W. Earned and assistants (March): A few adults were seen
flying, on 1March 18 at Lucedale.

J. '. Robinson (March 24): 3'ras>horn-ers are moderately abund-
ant in Auburn adults of Scnistocerca ancricna Drury found in
the woods.

C. L. .Cor.:-s (Marcn 19): Grassho-oncrs arc -nodcrately abuind-
ant in northeastern ;orninj: and centr-1 yyo-nin;. Sherid.n Coun-
ty will likely have a serious outbre<:. .e n-credict localized
daT-i-.e in seven other counties besides Sheridan this sumi;er, and
severe d-:'--e in Sheri.nn County.

G. F. T!'owlton ('*arch 2Z: A few. s ecies of r .ssho0oers that
winter over in the ny-npha.l st-, e a:e now active in northern Yt'b.
These ny- rnhs are moderately ab:.-1' :t.

C. D. Lebert (7-rch 23): G-raseop-ers, S'el ', sp., are
scarce in the Salt tRiver Vaile".









C UT'O RS 1 (7o ctuidae)


Florida



Nebraska


Kansas


Missouri


Mississippi


Texas


Utah


Arizona


California


Virginia


Ohio

Iowa


J. R. Watson (March 21)- The cutworms are moderately abund-
ant. Ue have not received so many complaints as usual for
March, owin; to cold weather.

M. H. Swenk ('"arch 20): Cutworms are beginning to show ac-
tivity and are moderately, abundant.

H. R, Br-son (March 20): Cutworns are reported as moderate-
ly .^b,..dcint.

L. Haseman ('''.-rch 23): T0wo species of cutworms (undetermined)
are moderately abundant at Columbia.

R. a. Harned and assistants (,arch): Cutworm-s are re-oorted as
moderately ab,_ndant in scattered localities.

F. L. Thomas (Mrarch): So..e cutworms were found in the pupal
stage at College Station.

G. F. Knowlton (*a.rch 23): Cutworms have been observed but are
not yet causing da'nage.

C. D. Lebert (March 23): Cutwo-rms. (.s-oecies undetermined) are
moderately abundant in the Salt River Valley.

Stewart Loc'n-wood (M'arch 18): Reports have come to the office
that a cutwor-, (species unknown) has been responsible for sone
amount of damage to grapes in Stanislaus, Merced, Madera, Fresno,
and Tulare Counties. This may be the greasy cut worm.


C E R 3AL AN D F 0 R A G E-4 C R 0 P I S C T S

WHEAT

H2SSIAC< 1LY (Phytouhaga destructor Say)

C. R. Willey (March 24): The Hessian fly is very scarce in
the Shenandoah Valley. I have found none in several fields
which I have examined.

J. S. Housor (March 24): The Hessian fly is scarce.

C. J. Drakec (TMarch 20): The infestation is very serious in
the counties of Woodbury, Monona, oind Harrison. In these coun-
ties a considerable acreage of wheat was planted before the
fly-free date. The use of combines has also increased the
amount of volunteer v'heat, especially in wheat fields sown to
sweet clover. During the warm weather in October a considera-
ble number of flies emerged from the early seeded fields and









volunteer vh,,t.t As a rcslit, ;'c-.'.-t ficl.s drilled -'s late. as
the 4th of October in "'onona. County ar heavily i.nfested ",ith
the Tcsiani fly. The wearmT v.o thcr during. the f:.ll and winter
has enabled a large pcrcentage of the *:,-1 ';-ots to comrolete their
development during- the winterr months. At the nrcsent time -'tout
1 r'er cent of the flies arc in the nag;ot stage nd about ready
to transform into pupari. Reports of infcst ',tion in a
seededO filds have bc n received from a number of countic, in
southern Iovwa. In a fev counties perhaps as much as 50 rer
cent or more of the wheat rill be destroyed.

T Jaques ("arch 23): The situation se'mns to be very ser-
ious in m-ny -n-.,rts of the State arlthour'h a number of cocities
report "no wheat" '-nd others ap-o'arently only a light infcst--
tion. Lee, .Toodbury, and Harrison Counties rcpcr't a heavy aband-
onment of t.

G. C. Dec' cr (' -rch 25): I.have recently m!de a- second sur-
vey trio to Lc. and -dj-.cc.-nt counties and find the situation
there almost as bad ',s v.e found it in ",monona and "',Vstern Coun-
ties. 'n filds oex-,iin:d, nov shove from 30 to 80 per cent of
the plT-nts infested and a count of from 85 to 200 fla-xsccds per
100 plants.

.Ucbras'-a "'. H. S en.: ("arch 2D): The c7ssien fly is found in mnodcr-,.te
abundance e.

Kansas H. -. Bryson ("'arch ?0): The Hessian fly is found in moderate
abundance in the central and northwestern parts of the State.

Missouri L. H.s.-nan (ar.rch 23)' The Hessian fly is moderately aound-
ant in central Missouri. Seems to have wintered Vell. S3eci-
mens collected "'arch 19 had 50 ner cent pupae on March 23.


Co 0

C.I-'C.i .-JT (3iisus leucorterus Say)

Illinois J. F. lint (M!arch 19): The chinch-bu-: mortality for the
,ast ,;inter has been verP lor If present weather conditions
continue, severe .a-,-'e frost this insect 7ill occur throuL.hout
central Illinois.

Kans-as T . 3r-,son ("arch 2'): Chinch bug nmoderately abundant in
22 counties in sout'"..stern :.-s. 'inter quarters -ell burned
last Decem-ber.

.issouri L. Haseman ("arch 23): The chinch buIL has wintered vel. but
is not yet movin,.







CO EARWO (H-48-elothis obsolete Fab.)

CORT BAR. WOBM (Melio'this obsoleta Fab .)


Florida


Mi ssouri


Texas


Arizona









Oregon




















Minnesota


J. R. Watson (March 21): There have been no complaints of
corn ear worms.

L. Haseman (March 23): The corn ear worm wintered almost
perfectly 2 to 4 inches below the surface.

F. L. Thomas (March 20): The first eggs were found in Gal-
veston County by J. '1. Roney on February 10. Twvo larvae were
found on mustard on March 2.


ALFALFA, CLOVER, ETC.

PEA APHID (Illinoia -pisi Kalt.)

C. D. Lebert (March 23): The pea aphid is very abundant
this spring on peas, alfalfa, and vetch in the Salt River Val-
ley. In many cases the plants are so laden with aphids that
they are weighted down flat upon the ground and the foliage
is covered with honey dev. Many pea, plants have been killed
on the experimental farms near Mesa. Hymenopterous parasites,
syrphids, and ladybeetles were noticed to be working on the
aphids.

Insect Pest Report, Ore. Agr. Coll. and Exp. Sta. (March):
There will probably be local damage to vetch and peas this
year as there is every year. The number of pea aphi&s in the
field at the present time does not indicate a general outbreak
unless exceedingly favorable weather occurs. Mr. L. P. Rockwood
reports a survey of four or five Austrian winter field pea fields
near Corvallis in March resulted in an average of two aphids to
one hundred sweeps of the net. Very scarce. The pea aphid was
just beginning to dama:-e a vetch crop in an orchard near Kansas
City community, Washington County, February 12. This vetch Was
seeded early in August, 1930. A fungus disease, Dnto-iopl]bh6-_.
aphidiss F.ffman., was just beginning to work on the aohids. By
February 23, there w;as a reduction in numbers of aphids by about
75 per cent, -orobably due to the fungous disease. No pea aphid
found on Austrian -opeas near Forest Grove except a few in one
poor field which had been disked back on the same land in Au-
gust, 1930.

CLOVER HAY I OPRM (:ysopygia costalis Fab.)

A. G. Ruggles ("'rch 23): The clover hay v:orm was present in
an alfalfa stack at Austin.











Alabama


Mi ssouri


-49-

CC'":-.' C2'jCULIO (Chalcoder-nus aeneus Boh.)

J. M. Robinson (March 24): About one-third of the adults of
cc'.-rc:a curculio active in hibernation c. ; March 10.

CLOVER MIT (3-"ITL nriraetiosa Koch)

L. Haseman ("* rch 23): 7-.e usual early-season dis-ersal of
the co'n-nin red snider, rhich on examination seems to be the
common clover red spider, is attracting attention. Comnlcints
rE-,Frding it showv that it is unusually abiunl:-nt crawling on
the sunny sides of buildings, as well as in homes.


FRUIT INSECTS

APPLE

ArHI:S (Aohiidae)


Massachusetts


New Jersey





Vermont



Cormncticut


Pennsylvania


Ma rylmand


DelaTvare


West Virginia


Virginia


A. I. Bourne (March 25): Orchard pla.nt lice apoear to be com-
paratively scarce quite generally over the State.

Thos. J. Headlee (March 5): Anhid c%' 1-s are less abundant than
last year but I should also say that laId,'beetles are likewise
less abundant and that the chances of a olant-louse outbreak,
provided favorable weather conditions exist in the spring, are
better than for two or three years past.

H. L. Bailey (March 25): The fruit aphids are moderately
abundant. ,-_-s of the green apple aphid (Aphis nomi Dt.) have
been noted.

W. 3. Britton (March 24): Fruit aphids are scarce. Some
eggs are observed on twigs.

H. N. '.orthley (March 23): Aphid eggs are scarce on apple
trees.

Ern-est N. Ca-y ("March 25): There is a noticeable absence of
aphid eg.-..

L. A. Stearns (arch 23): The e-gs of fruit aphids were found
in moderate abundance throughout the State.

L. M. Pcrirs (March 24): Fr.it -nhids are scarce in Jeffer-
son County. The eggs of all species are hard to find.

C. R. Jillcy (March 24): Fr-iit aphids are scarce in the Shen-
andoah Valley. Th.: eggs are hard to find and Ihave seen no
live aphids to date.







-50-

South Carolina Alfred Lutkon (March 25): The rosy apple aphid (Yinuraphis
roseus Baker) is moderately abundant.in the northwestern
part. Young nymphs Pf/rosy aphid were found on apple buds
March 18. tr

Georgia C. H. Alden (:.-rch 20): The fruit a-hids (green apple
aphids) are scarce.

Ohio J. S. Houser (March 24): Fruit aphid eggs are scarce.

E. W. Mendenhall (March 24): Winter eggs of Aphis omi
are moderately abundant.

Kansas H. R. Bryson (March 20): Fruit aphids are scarce.


Missouri'




Arizona



Oregon




Virginia


Connecticut


Kansas


Missouri


Mississippi


L. Haseman (March 23): The fruit aphids are moderately
abundant. The oapple-oat louse (Phopalosiphum prunifoliae
Fitch) is less abundant than usual. There are still eggs
on this date.

C. D. Lebert (March): The apple-grain aphis, was found
to be fairly abundant on wheat, barley, and oats at the
experimental' farms near Mesa, on March 22.

Insect Pest Report, Ore. Agr. Coll. and Exp. Sta. (March):
Fruit aphids have been active since January in Umatilla County.

L7.UAF-HOPPERS (Cicadellidae)

C. R. Willey (March 24): Adult leafhoppers, Erythroneura
hrti Gill. and E. obliqua Say, are moderately abundant under
the leaves. E. oblique are the more numerous.

W. E. Britton (March 24): The eggs of apple leafhoppers
are very abundant in twigs.

H. R. Bryson (March 20): Apple leafhoppers are found in
moderate abundance.

L. Haseman (March 23): Apple leafhoppers are moderately
abundant and are active on warm days.

G. I. Worthington (March 21): Apple leafhopper damage to
cherry trees from last year is severe at Clarksdale.


CODLING MOTH (Car-pocapsa pomonella L.)


Maryland


Pennsylvania


E. N. Cory (March 25): I believe the carry-over of the
codling moth is above normal.

T. L. Guyton (March 21):. The codling moth is unusually
abundant in orchards in the eastern part of the State.














Sout. Carolina


Georgia


Kansas


Missouri


Oregon


Vermont


Massachusetts






Connecticut


New Jersey



Arkansas


Texas


H. N. Worthley (MIarch 23): 'The coding m-noth is moderately
abundant. About 90 per cent of the hibernating larvae have
survived to dat. .

A. Lutken (March 25): Ppae were found in an orchard at
WValhalla, March 30.

C. H. Alden (Mrrch 20): The codling moth ha3 not started
to pupate yet.

H. R. Bryson (March 20): The codling moth is very abundant
in the south-central part of the State.

R. M. Jones (March 25): The heavy carry-over of the codling
moth larvae and the nild winter should result in a heavy
emergence of spring brood moths.


G. F. Knowlton (M-arch 23): Codling moth counts made up to
date show an overwintering mortality of but 20 per cent, in
spite of the severe winter.

D. C. Mote (March 23): The codling moth has been observed
at the larval stage in Willamette Valley.

EASTRN T-T CATPMPILLAR (Malacosoma americana Fab.)

H. L. Bailey (March 25): From observations as to egg.
masses in Windsor and Windham Counties the eastern tent
caterpillar is moderately abundant.

A. I. Bourne (March 25): From all the information at hand
at the present time and from what observation I have had the
opportunity to make in the immediate vicinity of Amherst, this
species is not very abundant, although a considerable amount
may develop l.ter in Bristol and Plymouth Counties, where the
pest was quite plentiful in 1930.

W. 3. Britton (March 24): The eastern tent caterpillar is
scarce, few eggs being present.

T. J. Headlee (March 5): s-s of the tent caterpillar, while
not entirely absent, arc pretty nearly so and an outbre'-d: of
this ini-ct is hardly to be anticipated.

W. J. Baerg. (March 14): Eggs begon hatching on March 12
at Fayetteville. .gg masses are apparently rraerous this year.

F. L. Thomas (March 22): M. acrican-i is, as usual, abundant
this time of the year in the woods around College Station.
Caterpillars are about full grown and mamy of the Cr'.toegus
bushes are defoliated. Did not observe any sij;n of par-sitism.











SAN JOSE SCALEI (As-idiotus perniciosus Const.)


Connecticut

New York


Pennsylvania


New Jersey










Delaware


Georgia


Illinois


In diana


Kansas


Missouri



Mississippi


W. 2. Britton (March 24): The San Jose scale is scarce.

C. R. Crosby (March 26): The San Jose scale is generally
more abundant than for several years.

T. L. Guyton (March 21): The San Jose scale is very abund-
ant, especially in the southeast.

H. N. IWorthley (March 2.3): The San Jose scale is moderately
abundant at State College. There is about 50 per cent surviv-
al tQo date.

Thos. J. Headlee (March 5): The San Jose scale can not be
considered an insect difficult to control under New Jersey con-
ditions but there-is some evidence in certain old apple or-
chards that s vigor may be rising. I su-ppose this means
that its pnar-sitic enemies have become considerably reduced.
There is nothing, even in these old orchards, of a threaten-
ing character as yet but the .difficulty of securing satisfac-
tory control with insecticides gives me the feeling that we
mnst watch 6ur step.

L. A. Stearns (March 23): The San Jose scale is slightly
more abundant than usual.

C. H. Alden (March 24): The San Jose scale is scarce at
Cornelia and moderately abundant at Thomaston.

W. P. Flint (March 19): An unusual percentage of the in-
sect survived the winter in Central Illinois. In normal
years from 25 to 30 per cent survival occurs. Counts made
by Mr. Bigger, Mr. Farrar, Mr. Chandler, and others indicate
that fr m 60 to 70 per cent of the scale have survived the
winter a _-f O-;].

J. J. Lvi, (arch 28): The San Jose scale is abundant on
apple an- peach at Losantville.

H. R, Dryso-i (March 20): The San Jose scale. is reported as
being mdci.eratoly abundant.

L. Haseman (March 23): The San Jose scale is scarce. Over
the State as a holee it is in satisfactory shape as regards
control .

R. H r 1ned and assistants (March): The San Jose scale ap-
Docrs t:, bo unusually abundant in most sections of the State.









Utah




Idaho



Oregon







Idaho


Wyoming


Kansas


Vermont


Massachusetts




Nevw Jersey


G. F. Knowlton (March 23): Dr. F. _.. Stcrhens reports San
Jose scale daman--: as bci- very severe west of Provo and at
IAmerican Fork, and that several orchards arc being pulled
out because of the severe iam-n- c from this insect.

Claude Tak-- land (March 23): The San Jose scale is moderate-
ly abundant at Lewiston; 8,209 scales were examined orepara-
tory to snray nxrrincnts, and 62.5 nper cent found to be alive.

Insect Pest Rrport, Ore. Agr. Coil. and 2x-o. Sta. (March):
The San Jose Scrle, is moderately abundant in "olheur, UTivtil-
la, and Jackson &,vuntics, while in Josephine County it is re-
ported as being more abundant than it has been for the past
ten years.

FRUIT T.RE L.AF ROLLR (Archips argyrqspila "l-.)

Claude 7aVclnfnd (M.arch 23): The vwintcr mortality was e::-
tremely li .t.

C. L. Corkins (March): The fruit tree locp, roller is
scarce.

APPL2 CUICULIO (Tachyrterellus quidrigibbus Spy)

H. R. Bryson (March 20): The apple curculio is moder,-tely
abundant in Doni-ha:n and Atchison Gounties.

ROLT D-H.ADD .APPL TRIE BOIR (Samerda candida Fab.)

J. S. Houscr (.,,.rch 24): The round-headed aprplc tree borer
is unusually abundant, jur'Qinj from reports received b- the
department.

2EJROP:./ RD P-:-: (P.%ratetranychus pilosus C. &.F.)

Harold L. Bailey (March 25): R.-p-rts have been received of
considerable abundance of egg's at Jait':.ficld, '.ashin.ton
County.

A. I. Bourne (,March 25): The condition throughout the
State, while somewh'.t snotty may be said to indict that
the red mite will be considerably more abundant thal it was
last yc-ir.

T-,,s. J. Headlee (,March 5): Red 'litc e.s are less r iw.-
ant than last year but I should also s ,y th-t laO 'bectlcs :,re
likewise less abundant and that the chances of a olmnt louse
outbreak, orovidin,-, favorable weather conditions exist in
the spring, are better than for two or three yecrs oast.
There are decidedly more red mite e",:. on each trees than I
have seen in the past sevcrnl years, which mivy or --.:r not










-54-

mean an outbreak on peach..


Maryland E.N. Cory (March 25).: There is a noticeable absence of red
mite eggs.

North, Ca-rolina R. -7. Lciby (February 23): Apnlc twigs sent to the office
at Raleigh from Blowing Rock!: February 23, were found to be
heavily infested with eggs.


P2ACH

PIICTT' BORER (Acgeria exitiosa Say)


Georgia


Missouri :


Mississippi


Connecticut


Maryland


Delaware


Pennsylvania


South Carolina



Georgia


C. H. Alden (March 20): The peach borer is scarce at Cor-
nelia.

0. I. Snarp (March 20): As usual this insect is causing
considerable damage in peach orchards in Fort Valley that
were not wormed or treated.

L. Haseman (March 23): The -each borer, (mostly small larvae),
is moderately aoudant. Some complaints are being received.

R. Wi. Harned and assistants (March): The peach borer is re-
ported as moderately abuid.ant in the 'southeastern and north-
western sections of the State.

ORLrUTAL FRUIT MOTH (Laspeyresia molesta Busck)
7. 3. Britton (March 24): The oriental fruit moth is mod-
erately abundant.

3. NIT. Cory (March 25): The carry-over of the oriental fruit
moth is above normal.

L. A. Stearns (March 23): The oriental fruit moth shows no
pupation as yet. .

T. L. Guyton (March 21): Thc oriental fruit moth is moder-
ately abundant.

Alfred Lutl.en (March 25): Adult oriental fruit moths were
emerging in cages on MVirch 9 in the northwestern part of the
State.

H. H. Clarke (March 2,7): Approximately 7 per cent of the
overwintering larvae have -oupated in thb insectary at The
Peach Exberimcnt Station, Thomaston. No unoths have emerged
to date.








-55-

C. H, Alden ("'.rch 20): The oriental fruit moth is nmod-
erately abundant at Cornelia; and there has been no ouma-
tion. It is scarce at Thomnston and few have ou-oatcd.

Ohio E.W. Mendenhall (March 24): The oriental fruit 7moth is
moderately -u-irnd,,nt in young poetch stock.

Mississippi N., L. Douglass (,arch 21): The oriental fruit moth is
moderately aou:1'..t in northern Mississippi.

PLUM CURCULIO (Conotrachelus nonunhar Hst.)

Deleware L, A. Stearns (M9rch 23): Tone of the polum curculios have
emerged from hibernrion as yet.

Georgia 0. I. Snap? (Clarch 20): No adults have appeared from hi-
bernation to date in Fort Valley. Jarring for the first
adults has bccn conducted daily since March 12. The appear-
ance of -dultL from hibern-tion is much later this year than
usual when com-ared ,ith the -oresent staje of development of
the fruit. This is due to the cool weather thLt has pre-
vailed since the trees started to bloom about the first of
.m .rch. These insects come out of hibernation when the mean
temperature has been above 600 F. for several successive days.
Only one day since '11arch 1 has the mean temperature reached
600 F. Petals are no-;, falling from Hiley and Elberta peach
trees. The late app-earance of the culrculio from hibernation
this year. -ma, nrevcnt the development of a second brood of
larvae before 31berta harvest.

C. H. Alden (March 20): The plum curculio is scarce at Cor-
nelia and Thomaston; no beetles h}-,vc e crged yet.

W7. H. Clarke (.March 25): The first overwintering adult was
collected in 'the orchard today, at Thomaston. Only a single
s-necimen was caught. Last year the date of the first curculio
caught by jarring was March 17. Aorroximatcly 1,000 adults
were collected by jarring in the same orchard on the same date
last year, March 25, 1930.

Florida J. R. Watson (M'arch 21): The plum curculio is late in
emergence. A very few have been observed at Gainesville.

Kansas H. R. Bryson (March 20): The -lumr curculio is reported as
moderately ab'.ndant.















Georgia


Virginia


.56-*


FUJLLER'S ROSE BEETLE (Pantomorus fulleri Horn).

0. I. Snapp (March 19): These beetles are appearing in num-
bers on peach trees at Americus.

TERRAPIN SCALE (2ulecanium nigrofasciatum Perg.)

C. R. Willey (March 24): A severe infestation of the terra-
pin scale was discovered by an orchardist in a block of peach
trees at Woodstock.


PEAR

PEAR PGYLLA (Psyllia pyricola Foerst.)


Massachusetts


Mississip-pi


Texas


Idaho


A. I. Bourne 2',-arch 25): On March 22, a rather unseasonably
warm day, wn ,o'..' ; Amherst in a pear block, which.was in a
very favored .cati several specimens of the pear psylla
appearing on the twigs. As yet there is no indication of egg
laying.


PL~UM

RUSTY PLTURM APHID (Hysteroneura setariae Thos.)

R. W. Earned and assistants (March): The rusty plum aphid is
moderately abiimdant at Tiggins, and 7cComb and very abundant at
Centerville and Natchez.

F. L Thomas (March 25): The rusty plum aphid is earlier
than usual and abundant at Somerville, Burlington County.


A PYRALID (Mineola scitulella Hist.)


Claude Tjakeland (March 23): Mineola scitulella Hist. is just
coming out of hibernacula on prune trees in the Boise Valley
area. ,


PECAN

PECAN NUT CASE BEARER (Acrobasis caryae Grote)


Alabama


J. M. Robinson (March 24): The pecan nut case bearer is
present at Prattville, and growers have requested control
measures.






-57-


PECA2! CASE EEAR7. (Acrobasis j1l1 ndis LeB. )


Missi Ssip-oi


Mississippoi


Henry Dietrich (March 21): Pecan leaf case bearers are
present sparingly in hibernacula on pecan in orchards in
George County.

HICKORY SHTCK 70?J (Las!eyresia caryana Fitch)

Henry Dietrich (March 21): Pecan shuckic worms are -nostly
in the pupal stage at Lucedale; not abundant.


PEC.AN COSSID (Cossula rnifica Streck.)


Mississippi


UTn. L. Gray (Qrch 21): The hickory cossid is moderately
abundant on pecan at Natchez.


T^IG GIRDLER (Oncideres cin,"u1atus Say)


Mississippi


R. P. Colmer (March 21): The twig girdler is scarce on pe-
can in eastern Jackson County.


CITRUS

GRE-T CITRUS APHID (Aphis spiraecola Patch)


Florida


Arizona


J. R. Watson (March 21): The green citrus aphid is doinr
serious damage only on the lower east coast -- Broward Coun-
ty, especially at Davis. A few trees as far north as Polk
County (Lake Alfred) are heavily infested and a few aphids
are seen as far north as northern Marion County (Citra). B-t
it now seems certain that (except perhaps on tangerines) the
d-mage will be light this year.

CQWPEA APHID (Anhis medicaginis Koch)

C. D. Lebert (March 23): A. medicaginis Koch is moderately
abundant on citrus in the Salt River Valley and around Phoenix.


RASPBERRY AND BLACKBERRY

A TREE CRICKET (0ecthus sp.)


Ind iana


North Dakota


J. J. Davis (March 28): E-:-- -ounctures of a tree cricket are
abundant in raspberry canes at Van Buren.

J. A. Munro (March 20): A considerable amount of tree crick-
et (probably the striped tree cricket) injury to raspberry canes
and shrubs has been reported of late from Hankinson. Twigs sent
in for insr .-ction were badly punctured and contained larTe nirm-
bers of eggs.









RASPBERY BUD MIT! (ErioDhyes grncici:s Nal.)


Washington


WIn. 17. Baker (March): Mits were found. on every thimble-
berry bush, Rubus parvifloius Nutt. and examined: from sever-
al localities in Pierce and KJi-g Counties; s%'gme of these
were miles from -any Irown crvtivatod berries. In the case
of the thimbleberry the mites were practically *all located
on the inside of the buds and at the junction of healthy a.d
injured: tissue, making it: appear very much .s though the,
mites were responsible for the injury. Not a single field
examined from several pl-es around Sumner, Puyallup, Orting,
Taco'ma- and Bellevue were :eree from the mite. In some cases
there was a little evidence of injury but this was rare.


AN ERIOPHYIDI MITE (Erio-hyes vitis Landois)


Washington


In. -7. Baker (March 26): Grapes in two ,different vineyards
at Bellevuo have erio-ohyidz probab37 Ery iohyes vitis Laadois,
as they cause the saAQ wooly appearance of the underside of
the leaves as is mentibned for this species.


O0TTay.TYMtPLE SCALE (Pulvinaria: vitis L.)


Indiana


New Jersey


Ohio


J. J. Davis (March 28): Cottony mple scale reported abund-
ant at Hartford City and Nobleaville. At the latter place
grapes were re-orted heavLly infested.

OYSTR-SHEIL SCAI2 (Leridosaphes ulmni L.)
scale,
Thos. J. Headlee (March 5): The 9yster-shft/is not, I
think, so vigorous as it has been izn yoe.rs past.

4. W. Mendenhall (March 24): The oyster-shell scale is
moderately abundant.


J. S. Houser (March 24):
moderately abund.art.


The oyster-shell scale is


Indiana


Kansas


Missouri


J. J. Davis (1March 28): Oyster-shell scale(L. ulmi L.)
abundant on apple at 'Jolcottsvillc.

H. R. Bryson (March 20): The, oyster-shell scale is re-
ioorted as being scarce.

L. Haseman (March 23): The oyster-sheil scale is scarce in
Mi ssouri. : ... .









Nebraska


Colorado


Florida


Arizona


Mississippi



Florida




Arizona




Ar4'. 7)c


M. H. Swenk (March 20): The lilac form of the oyster-shell
scale is very abundant in Zom-ne parts of northeastern -. braska.

C. P. Gillette (March 6): I am not sure that I noted in any
of my reports last year that the oyster-shell scale, which was
becoming so abundant on our ash, willow, and cottonwood trees,
in northern Colorado, and on the purple lilac, was alm-ost ex-
termi--,ted during the winter of 1929-30 by the severe cold
weather -- the te.meraturr, here at Port Collins goi-g as low
as 38.5 degrees below zero. 'Ve were only able to find occa-
sional live specim-nens of the scale in this vicinity last sLm-
mer.

PURPLE SCAL3 (Leo.:c,3^h.: s beckii New-r.)

J. R. Watson (March 21): The purple scale is modern.tely
abundant. Crawlers arc bc-jr.inn: to em-nerge in Polk: County
and south.


COTTO1TY CUSHIO:: SC.'1E (Icerya -ourchasi Mask.)


C. D. Lebert (March 23): The cottony cushion scale i,.
again appearing in small, scattered infestations .'"--
ley. In most cases the infestations are slight,especially
in the citrus,although one rather serious infestation was
found on grapefruit in Tempe. This infestation was attri-
buted to a nearby infestation on Pittosporum tobira which
had been reported too late to control by means of establish-
ing the predacious ladybectic. Vedalia cardinalis. In every
case where the beetles were established last year a nearly
cotplote control was secured.


CITRUS ':.THIT'LY (Dialeurodes citri Ashm.)


R. W. Harned and assistants (March): Reports from the
southeastern part of the State indicate that the citrus white-
fly is moderately abundant.

J. R. Watson (March 21): The citrus whitefly is moderate-
ly abundant and is passing into the pupal stay,-'.

OR2':GE TT.2IPS (Scirtothrirs citri Moulton)

C. D. Lebert (March 23): The citrus thrips reported quite
numerous at Yvma.

FLO'-'= TH2.IPS (Frankliniella tritici Fitch)

C. D. Lebert (March 23): The v'-;crt or flower thrips are
quite abundant on citrus rnd flowers in the Salt aivrr Val-
ley.





-. R S60-


T RUC -C RO P I X S E C T S


Florida



Mississippi





Alabama


Texas


Oregon


Utah


Florida


Texas


VEGETABLE WEEVIL (Listroderes obliquus Gyll.)

M. M., iig-h (March 24):. We have recently found the vegetable
weevil in the following new counties in Florida: Jackson,
Okhioosa, Gadsden, and Santa Rosa.

R. W. Ho-rned. (March): Larvae of the vegetable weevil have
caused much damage and attracted much attention in cabbage and
turnip fields in tho southern.half of the State. Specimens
have recently been received from the vicinities of McCarley,
Foxworth, Woodville, Phoenix, Laurel, and Neshoba.

J. M. Robinson (March 24): Larvae of the vegetable weevil
emerged from material, sent in from Andalusia.

M. M. High (March 24): We have recently found the vegetable
weevil in the following counties: Orange, Jefferson, Hardin,
and Chambers. .. .. ..

ST=T SPCOTTD CUCUDBER B=2ETLE (Diabrotica soror L. )

Insect. Pest Rept. Ore. Agr. Coll;,& Exp. Station (February 2):
Mr. T. R. Chaonberlini reports that they began leaving caches near
Forest Grove. by January. 25, practically one month earlier than
in 1930. Beetles have-, not been.found plentifully in the fields,
however, .since the last .of January and early February. In
spite of early issuan.ces, egg development seems later than at
this time last year, (March 23):' Mr. Thompson reports 5 or 6
specimens to the square foot taken in Austrian-winter pea field
at Corvallis. The 'insects were feeding but as yet no apparent
economic damage appeared. Mr, Thompson reports all specimens
were females and heavy with eggs.

iOp FLEA -B=TL, (Psylliodes punctulata Melsh.)

G. F. Knowlton (lHarch 11): The hop flea beetle is active
at the present tine in northern Utah, feeding on weeds during
the.wanm part of the day ...


SEED COP?-T 1,AGGOT ,(lRylemyia cilicrura Rond. )


J. :R. Watson (March 21): The seed ,,corn maggot was destroying
cucumber plants at Bushnell, February .18.

F. L. Thomas (M.rch 16): The seed corn maggot was found
in moderate abundance in corn at Romney, Eastland Counity,
where considerable'. dao -o was being done. The corn seed
had been in the soil about '10 days.. .







APHIDS (Aphiidae)
APTiDS (Aphiid~ae)


Virginia




South Carolina



Mississippi


Florida


1Mississippi


G. T. Gould (March 24): The spinach aphid, M_.zus persicae
Sulz., is abundant upon all spinach in the Norfolk area. The
number present at this time is much greater than this time
last year.

A. Lutken (March 7): A heavy infestation of aphids on
broccoli, Tmustard, and turnips in Bc-afort Co-unty (March 5,
1931).

R. W. Earned ?.nd assistants (Marchi): "'hn complaints
have been received fror. all sections of the State during
the past fev; weeks in regard to aphid infestations of
various kinds of plants. In only a fe; cases have these
complaints been accompanied by speci-.iens. However, specimens
have been received and identified as follo;.s by Mr. A. L.
T q.- n or:
Aphis pomi on spiraea from Biloxid, M.rch 6.
Rhopalosiphu2n pseudobrassicae on cab'i-e from Lucedale,
February 23.

G. L. Bond (March 21): Plant lice observed on spinach,
injury slight, from Snith, Jasper, Covington, Jones and W'ayne
Counties.

G. F. Knoijlton (March 26): Myzus pcrsica-: Sulz. has been a
nuisance on sprouting potatoes used for experimental purposes
at Logan on several occasions during the past two seasons.

TA.NIS:--D PLITT TJUG- (Lus pratensis L.)

G. F. KT'no'vlton (March II): Tarnished plant buns are active
at the present tL:e, on warm. d'vs, in Boxelder a-nd Cache Counties.

C-_''GA (Scapteriscus vicinus Scudd.)

J. R. Watson (March 21): The West Indian mole cricket is
doing ru.ch d -_a-e to golf greens at Belleair and other places.

IIORTHMY'T MOL- CRICK= (Gryllotalpa hoxadactyla Porty)

E. Dietrich (7i'rch 21): The mole cricket is again becoming
abundant in jare1.--.s at Lucedale.


SLUGS (Mollusca)


South Carolina


A. Lutken (March 7): Slurs are d'i:a.ir.n tobacco seedlings
in Georgetown County.





-62-

PILLBUGS (Oniscidae)
%


Mississippi


Mississippi


Texas


Wyoming


R. W. Earned and assistants (March): A correspondent at
Laurel sent to this office o,n March 9 some pillbugs with
the following cormnent: "They simply eat everything we plant
and curl themselves around rose stems and suck the life out
of them." ..

R. P. Coiner (March 21): Pillbugs have been moderately
abundant in gardens in the vicinity of Pascagoula.
Especially bad on young flower plants.


POTATO

COLORADO POTATO B3TL' (Leptinotarsa decemlineata Say)

K. L. Cockerham (March 21): The first Colorado potato
beetle of the 1031 season was found on Irish potato on March
21 and the second on March 22, at Biloxi.

F. L. Thomas (March 21): The first specimen of the Colorado
potato beetle was observed this season at College Station
today.

C. L. Corkins (March 19): The Colorado potato beetle is
scarce.


CABBAGE

IMPORT CABBAGE 7OI2M (Pieris rapae L.)


Missouri


Mississippi


Kansas


Mississippi


L. Haseman (March 23): An occasional butterfly has been
seen on the wing at Columbia on warm days.

K. L. Cockerham (March 22): The first imported cabbage
worm was seen on March 22, attacking cabbage at Biloxi.

H. Dietrich (March 21): 'Adults v,,ere seen flying over
cabbage fields at Lucedale and Richton on warm days during
March.

H. R. Bryson (Mardh 20): The imported cabbage worm is
reported as moderately abundant. .

DIA[01UD-BACK MOTH (Plutella maculipennis Curt.)

H. Dietrich (March 21): The diamond-back moth is very
abundant on cabbage at Lucedale but very few moths are
emerging, owing to parasitism.






i (r-6Icorne brasicae L.
C-.2'3AGD APHID ( rc'vicrno brassicae L. )


Virginia




South Carolina


Florida


Alabama


Texas


Georgia




Florida


Georgia


Alabama


Mi -.-sippi


G. ni, Gould (March 24): The c"aboae aphid survived the
winter in large numbers upon many Cruci"r and cspcciall-
kale. Growers near Norfolk-,will have to harvest their crop
soon in order to escape damae.

P. K. Harrison (March 12): Cabb-',e ,phids wore collected
on cabbage and collards, 7cbruary 5, in twvo home gardens at
Fairfax. All plants were infested and some were severely
damaged.

T.JT:L !'r" :u- (;.Ir-:?.vti a histionica Hahn)

J. R. Watson (March 21): There have been no complaints yet
of the harlequin bu *.

J. M. Robinson ('M-rch 24): The harlequin bung has not been
found yet.

F. L. Thormas (March 20): J. 1. Reney. emtomolo.;ist of the
plant lice laboratory, reports that the harleauin cab-a-e
bug has been seen q"iite frequently on collards and "cns
since the 15th of Febru-ary at Dickcinson, Galveston County.


L^C.:TS

SPOTTM CTC.::2. 332TL3 (Di abrotica dFu' cirra.n..ct.t. Fab.)

Correction: -
The note on Di!.brotica vittata Pab. by F. L. Thomas in Texas
appearing In the Insect Pest Survey Bulletin, March 1, 1931,
P 24, referred to D. duodecimpunctata.

0. I. Snapp (March 13): The first atizlts to appear from
hibernation at Fort Valley- were observed on peach trees today.
The cool weather is kceepin': them in hibernation later than
usu.al.

J. R. Watson (March 21): The spotted cucumber beetle is
moderately abundant at Gainesville.

J. B. Gill ('March 27): The sotted cucumnber beetle has been
observed to occur on peach and plum blossoms at Albany.

J. M. Robinson (1March 24): The spotted cucumber beetle is
moderately abundant on lcoumes and garden vegetables at Auburn.

R. W. Harned and assistants (*-irch): The spotted cucumber
beetle has been reported in moderate abundance from the
southeastern part of the State.







Kansas


New Mexico





Arizona


Florida


Indiana


Missouri


Mi s si s sippi


Florida


Oregon


Oregon


464m.


H. R, Bryson (Mctrch 20): The spotted cucumber beetle
has not been taken this year at Manhattan at the present
writing.

J. K. ,ier (Mjarch 6): The earliest recorded ap'eara.c' of
the spotted cucumber beetle for the year is March 2. $ince
this insect is more or less active all '-.inter long, however,
it is possible that adults were in the fields on warm days
previous to this date.

C. D. Lebert (March 23): One adult vias taken in sweeping
in wviheat field, Mesa, on .March 22.

STRIPED CUTCUEGZ B- TL:, (Diabrotica vittata Fab.)

J. I. Watson (March 21): The striped cucumber beetle is
very abundant in the Everglades only.

J. J. Davis (March 3): Mr. Riley observed striped cucumber
beetles active in outdoor hibernation cages, February 23.

L. Haseman (March 2*3). The striped cucumber beetle is not
yet moving.

R. W. Harned and assistants (March): The striped cucumber
beetle is very abundant.


'STrIwB=S yRY

ST:V.7:.^.y .IU-, (Orthaea vincta Say)


R. i. "7?tson (March 21): The strawberry pnmera was sent in
from Lakeland in early March, at which time it was doing con-
siderable damage. This is early for this insect.


STJ2TrDY 1100T 7.277ILS (Brachyrhinus spp.)


Insect Pest Report, Ore. Agr. Coll. and Exp. Sta. (March):
Strawberry root weevils are moderately abundant in Columbia
and Multnomah Qounties.

STrA73Y CrOWN 30-M (Tylod erm frgariae riley)

Insect Pest Report, Ore. Agr. Coll. and Exp. Sta. (March):
The strawberry crown moth is very abundant in Benton and
Columbia Gpounties.


A ,CAS"-TI-..," (Coleophora sp.)


.~a3~LirL2'ton


Win. W. Z.al were found on strawberries at 3ellevue and Puyallup; apparently
these were nearly full grown thou.7h no case werp Pmi i-v











Mi Ssissippi


Florida


Alabam a


Georgia


Wyoming


I d.ho


TUTIFPS

TLIiP APHID (D'-lop o s i pseuxdobr ssic'.e Davis)

G. I. Worthington (.?rch 21): Aphids are .eneral on turn.i.s
in Coahooma, 3olivar, 5unfloer, and aslin ton Counties.

H. Dietrich (1'arch 21): Aphids, _. pseudobrassic e, are
very abundant on c:.bba:-e at Lucedale, George County.




ONION T=IPS (Thrips tabaci L.)

J. ,. W-.tson (:'?.:ch 21): The onion thrips are much in
evidence about Gainesville.

ONION HAGGOT (,jlerji-. antiocua Meig.)

J. M. robinson (March 24): General complaint has been made
of the onion m'a.-ot around Montgomery.


CAMo: S

C.1r:OT ?1UST 7LY (Psila rosae Fab.)

J. S. Houser (1!arch 24): Carrots in storage, sent from
Canton, show severe damage by the carrot rust fly. The grower
reports that this is the second year in which he iAas noted
injury.




BGGPLANT LE'12' .=':: (Phthorlma.a glochinella Zell.)

T. O'![eill (Febriaary 2): The egK-piant leaf miner, P. glochinella,
has been noted in Solanum at Atlanta.


BEST LZ-xr-C'Pp? (Sutettix tenellus Daker)


C. L. Corkins (![-orch 19): The beet leafhoppcr is scarce.

C. '.RI:clnd (Febr-uary 24): Climatic conditions >'.7e been
very favorable for survival. At this date overwinterin? *
adults are ay.d'..,.t in breeding areas an-d active duri-a-" periods


S P.^ss .






of favorable temperatures, (March 23): Thebeet leafhopper
is very abundant. liiiter mortality it very light. Conditions
at this time are unfavorable to pro.uCtion -of beets profitably
in the Lewis F-ihls a.rea.

0. F. Knowlton (March 23): A' few overwintering adults have
been collected in the Tooele and BoxelderCounty breeding
grounds.


FOREST AND SHADE-TREE INSECTS

GYPSY MOTH. (Porthetria dispar L.)

H. L. Bailey (March 25): Eg.- masses of the gypsy moth have
been found in moderate abundance by scouts of the Vermont
Department of Agriculture in Springfield, Rockingham, and
towns south to the Massachusetts line. Observations in other
sections point to scarcity or complete absence.


BROWN-TAIL MOTH (Nygmia phaeorrhoea Don. )


Vermont


Pennsylvania


H. L. Bailey (March 25): Inspections in sections of the
State most liable to reinfestation fail to reveal the presence
of any winter webs. The insect has not been found in the
State for several consecutive years, though reinfestation has
been expected owing to spread in eastern XTew England.
?
EUROP=AN PINE SHOOT ILMOTH (Rhyacionia buoliana Schiff.)

T. L. Guyton (March 13): Rhyacionia buoliana Schiff. was
collected in 1930 by G. B. Sleesman and H. J. Fisher, nursery
inspectors of the Bureau of Plant Industry, at the Pennsylvania
Railroad Nurserties, Morrisville, and on Cheltenham Road,
Chestnut Hill. Mr. Sleesman notes that the Pennsylvania
Railroad Nurseries have a heavy infestation occurring among
Scotch pine, but that the infestation at Chestnut Hill is of
minor importance.


TSTT CATERPILLAR (Malacosoma californica Pack.)


Arizona


New York


C. D. Lebert (March 23): The California tent caterpillar is
extremely prevalent this spring. Defoliation of cottonwuoed
around Phoenix is severe. Severe injury to apricot foliage
is reported in one instance.

BIRCH LWA-mINING SAWFLY (Phyllotoma nemorata Fallen)

R. D. Glasgow (February 28): I think you will be interested
to know that we found the Earopean birch leaf-mining sawfly,
Phyllotoma nemorata Fallen, to be abundant in 3ssex County last
fall. Apparently this insect is now well established in the
northeastern part of this State.


Utah


Vermont











Indiana


Oregon


Oregon


Mississippi


AFAT-A7r:M APPL l :2 :;-Z. I (Chr.'o 0ot--ris fer:.orata 01iv. )

J. J. Davis (March 28): This' flat-healed borer was reported
February 22 as occurring on orx;.' maple at Fr,.n-u'-ort.




ELM ? B3L=LE (Galerucella xathomcl ,'ar:)

Insect 'Pest ept. Ore. Ajr. Coll. and 7xp. St-.. (March):
The elm leaf "beetle is v;ry abundant near I-::ir.rton, Morrow County.


; FIR

^OTGLAS-..R CF.RPI ,AR (E_.,ci..ia arentata Packard)

D. C. :.!ote (March 23): Doglr4as-fir webwonnrm, Halisidota
r-:ntata Packard A colony of Douglas-fir webworms was
received from the State Board of Horticulture, Portland,
March 21. L.rv-'.e ere feeding on the fir needles and were about
1/2 inch long.


MA?7L5

MALPL7 3O. (SByn2nteo.n acerni Clem.)

E. W. Mjrdcrhih 1 (March 23): The soft and hard maple trees
on the campus of "'7lb.2r-oorcoe University are affected with the
maple borer.


OAK

A L=\ ::i' (Cemeraria. conlo-er-%tella Zell.)

R. W. Harned (March): Oak leaves containing mines probably
made by C 'm'.a..a con cTn.c-e ratela were received from Lauirel on
March 11 and March 14. A rather serious infestation of this
leaf miner existed at Lau.rel during the r'.st summer .and fall.


A C7:T-_?ID GALL (Callirh-rtis am.atic'o Ashm.)


Mississippi


R. W. IErned (M.a.rch): vWa.ter oak tw-is cont'Ain-- galls
probably caused by C ,,l2i'.ytis aouatic-7e were, received from
Meridian, on February 21.













Indiana


Mississippi


PI: L2A SCALE (Chionaspis pnifoliae Fitch)

J. J. Davis (March 28): Pine leaf scale (Chionaspis
pinifoliae) was reported very abundant on Colorada blue spruce
at Madison, February 18.


I NS E C T S A F E1':C T I N GG R E EN H 0 U SE A N D

0 R N A M N IT T AL PLAN T S AN T D LAWNS

SCALE ISE MTS (Coccidae)

R. W. Earned and assistants (March); Aspidiotus cyanophylli
Sign. was found on palm, Coccus hesperidum L. on oleander,
Pinnaspis aspidistrae Sign on fern, and Phenacoccus gossypii
Towns. & Ckll. on Hibiscus, on a property in Corinth on March 4.


COTTONY CUSHION SCALE (Icerya purchase Mask.)


Mississippi


Indiana


Mississippi


R. W. Earned and assistants (March): An infestation was
found on tung oil plants at Gulfport, on March 5. This insect
is doing considerable injury to Pittosporum in Hattiesburg.

GRE1iHOUSE WHITEFLY (Trialeurodes vaporariorum Westw.)

J. J. Davis (March 28): This whitefly was reported destructive
to Lantana at Indianapolis, Februanry 5.


A APHID (Myzus sp.)


J. P4 Kislanko (March): The upper leaves and the flowers
of Bouggainvillea sp. are heavily infested with aphids, Myzus
sp., in a greenhouse in Hattuie.sbirg.,*.


A COREID BUG (Jadera haematQlaoma H. S.)


H. T. Fernald (March 19):, Nymphs and adults are sucking the
juices from the blossoms of a very common .species of Bidens
which grows everywhere around Orlando, Captured February 7,
(This species has been recorded as-a cotton pest. J. A. H.)


A SWALLOWTAIL (Papilio ajaxiaroellus Cram.)


South Carolina


A. Lutken (March 25):. Specimen of the zebra swallowtail were
taken at Clemson College, March 19.


Florida










Indiana


Mississippi


GREr.-[CUSE CEITIPI E (Scutigerella imnmaculata Newp.)

J. J. Davis (March 28): The greenhouse c-entipede was
reported as badly infesting a greenhouse at' Shelbyville
January 19. The crop is not reported but supposedly it was
the lettuce crop.


ARBORVI TAE

M. APHETD (Dilachnus thujafolia Theob.)

R. W. Harned and assistants (March): This insect has been
found unusually abundant on arborvitae in many parts of the
State.


C 3DAR

DEDAR WEEVIL (Pissodes deodarae Hopk.)


Mississippi


Mississippi


Mississippi


R. W. Earned (.arch): Injured twigs of Cedrus deodara
were received from Ack-:rman on February 23.


C.RYSAITTrMn4M

CHRYSA2TTH'J1: GALL MIDGE (Diarthronomyia hypogaea Loew)

J. Milton (March 24): A heavy infestation of the gall midge
was found on chrysanthemums at Corinth in February. The plants
were destroyed.

CE-YSA1TTHIETUM APHID (Macrosiphoniella sanborni Gill.)

0. M. Chance (March 21): A few chrysanthemum aphids have
been noted in Hinds and Rankin Counties.


3U0::WrJs
NMS SCALE (Chionaspis euonymi Comst.)
]EUONYM,FJS SCALE .(Chionaspis euonymi Comst. )


Virginia


G. E. Gould (March 24): The euonymus scale is very abundant
around. Norfolk. Practically all euonymus bushes that are
two or three feet tall are infested and are severely injured
every year,





-70-


NARCISSUS

NARCISSUJS BULB FLY (lerodon eouestris Fab.)


New York


New York


R. D. Glasgow (February 28): The narcissus fly, generally,
has been of minor importance in New York', during the past
year but there is one small commercial planting in the
lower Hudson River Valley that is heavily infested by bulb
flies of the genus Merodon.

LESSER BULB FI*BEumerus spp.)

SR. D. Glasgow (February ?8): In our studies of bulb pests,
the lesser bulb flies were not very seriously troublesome last
year, and probably will not be especially important this spring
unless it may be in private plantings.


ROSE

ROSE APHID (Macrosiphum rosae L.)


Mississippi


R. W. Earned and assistants (March): Rose'ihids are very
abundant at Natchez and moderately abundant on roses and
bridal wreath in Jackson County.


INSECTS ATTACKING MAN AND

DOM E S T IC ANI M A L S.

MAN.

B?]DBtJG,.(Cimex lectularius L.)


West Virginia


L. M. Peairs (March 24): An unusual outbreak of bedbugs
from an undetermined source., has occurred in the rat and
rabbit breeding cages in the Department of Zoology at
Morgantown. The insects were apparently feeding and thriving
on these animal hosts.


BOXELDER BUG (Leptocoris trivittatus Say)


Iowa


C. J. Drake (March 25): The boxelder bug is very common -'.I
throughout the State this spring and causing considerable annoyance
in homes. Specimens have been received from Des M oines, Cedar
Rapids, Waterloo, Ames, Orient, Dubuqe-;, Clarinda, Ft. Dodge,
Manning and Battle Creek.

H. E. Jaquaes (March 23): Boxelder bugs are very abundant,
and the most annoying in years, :.i.: ;Lyon, Harrison, and
Pocahontas Counties.






-71-
.41 l-.


Missouri



Colorado






Utah






Colorado


Iowa






Kansas


L. Haseman (March 22): Boxelder bugs are observed
on .varm days. This insect is attracting more tharn usual
attention.

C. P. Gillette (March 6): The weather was warm enough during
the latter part of February to attract this insect from its
hibernating quarters and pcrimit it to collect on the walls of
buildings in northern Colorado. A few letters have been
received making inquiry as to what can be done to control the
pest.

G. K. Knowlton (March 23): The boxelder bug has only become
annoying in northern Utah during the past two or three weeks.
Previous to this time the continued cold weather prevented
their becoming much of a household nuisance.

A MITE (Bryobi,. ap.)

C. P. Gillette (March 6): Complaints are be-gir.nin;-- to come
from housewives because of the presence of the mite (Bryobil
sp. on the windows and walls of homes. Such complaints are
quite common nearly every year be-in:-in- about the first
of March and continuing until the mites have all escaped
from the houses.


CATTLE

OX "A;, IS (IBypoderma spp.)

H. E. Jaques (March 23): Several counties report more
ox warbles than usual. A. J. Secor of Van Buren County
writes, "We have conducted an ox warble campaign, and
had excellent results. We have record of unusual gain
in club calves by removal of warbles."
Bryson
H. R. .0 (I.-rch 21): Dr. E. G. Kelly reports the
heel flies out laying eg&,s March 12 in Greeley County,
Similar observations were made March 15 in Ottawa County,
March 16 in Fa'.-.lins County, and March 18 in Finney County.
These are unusually early dates for these flies to be active
in Kansas.





-72-


H 0 U S',:2'H0 LD. A N D S T 0 2 3 D -P i 0 D U C T S

INS 3 C T S

TE Y ITES (Reticuli.termes s-f,. )

Vest Virginia L. M. Peairs (March24): Several flights of adults have
been reported during the 'past week at Morgantown.

So. Carolina A. Lutkcen (March 7): Zep productive forms of subterranean
termites have been emerging in heated buildings since Febru-
ar, 5 in Columbia and vicinity.

Indiana J. J. Davis (March 28): Many reports have been received of
termite infestations. 1e-,orts come from Anderson, .ichmond,
Indianapolis, Petersburg, Plymouth,. Peruz, South Bend, Shelby-
ville, and -L, c.te. During the past week several lots of
winged forms have been received with the information that they
are emerging. This is a very early date for migration.

Illinoi's.- "W. P. Flint (March 19): Termite infestations are perhaps no
More numerous than usual, but more complaints of this insect
have been received.


Kansas



Missouri



Mississippi



Alabama




Georgia


H. R. Bryson (March 20): Termites are moderately abundant
over the entire State. The first record at Manhattan of ter-
mites swarming was made by Dr. 3. L. Parker on February 27.

L. Haseman (March 23): 'Je are getting an unusually large
number of early complaints regarding termites, particularly in
the floors and other timbers of dwellings.

W. Harned and assistants (March): Termites are causing
some trouble in wooden buildings, destroying foundation tim-
bers. The winged'formsns have been flying for a week'.

J. M. Robinson (March .24): Termites were swarming at Tal-
loega, March 6. They were also observed at Montgomery.

ANTS (Fermicidae)

M. Smith (March): Specimens of Solenopsis littoralis
Creighton, collected by M. S. Yeomans from a greenhouse at
Fort Valleyjpwere submitted to me for identification by Mr.
Tom 0'Neill of the Georgia State Board of Entomology. The
species heretofore has been known only from localities along
the Gulf coast of Mississippi and Alabama. That the ants
are highly granivorous is indicated by a number of observa-
tionspreviously made on them.






~73
~.*)


Mississippi


West Virginia


Wyoming


Oregon


M. R. Smith (March): D. W. Gri-ncs found a new infestation
of Iridoyr-ney humilis y. near Hoffman, Holmes County on
M:Trch 20. "1. L. Gray found v.or crs of Cauponotus caryae subso.
discolor :-Th.ry feeding on sugar in a house -t Natchez. This
is the first time t-Wt the s-oecies has ever been recorded as a
house post for this State Solenopsis xyloni !AcCoo"- anc arcd
above the surface of the soil during warm days in February.

N. D. Peets (March 21): Argentine ants are cm:iin : annoyance
in -iaces infested and which were not poisoned during the past
year.

SIL7TJISH (Lenisma saccharine L.)

L. M. Peairs (M!arch 24): Fish moths, L. sacc:-.rir-, numerous
in the breeding room of the Zoolovgy D'rtinent at the *Jest Vir-
ginia Universityr, Morfrnto T. This is a basement roo- with an
opr.ning into the stea-. tun-nel, and this seems to furnish warm
conditions which attract and maintain, with the animal food,
bran, and other starchy mixtures, conditions favorable for great
numbers of the fish moths.


YELLOW ::"'L O.0M, (Tenebrio molitor L.)


J. M. 2obins-n (March 24): The yellow meal worm was associa-
ted with a shipmnt of potatoes from ->yomini, found at Salitpa,
Al abama.


E5UrOPZAd 3AJiRnIG (Forficula auricularia L.)


D. C. Mote (I!?rch 23): Mr. Dimickc re-oorts the males have left
hibernating quarters and are above ground. They have been ob-
served for several weeks.


(A note which arrived too late to be
placed in its correct order)
?TTI "~l *'T?
STJ .17 A 1t'r s

SUGAaCA'irZ BO:r= (Diatraeia saccharalis F-,b.)


Louisiana


T. Z. Holloway ("'arch 30): Pupae of the sugarcane borer
hav.e been found several ti-nes dvrin,/ the winter by 7. K. Byn'Lnm,
stationed at Hou-a. The borer hibernates in the larval sta-,e,
but the extr-emely -ild weather of the winter apparently forced
p'p-tion. No adults emerged from- these winter Pupae up to
March 28, when two crcrgd from pupae collected on March 12.
.This is about a month ahead of the usual season.





-74-4
J-~Jf* M-.
Notes abstracted from "News Letter,. Plant Quarantine and Con-
trol Administration, "January, February, and. March, 1931'.

..(Not for publication)

ORANGE MAGGOT (Anastre-pha ludens Loew)

On November 4, one adult was caught in a trap- in Matamoros, Mexico,
just across the river from Brownsville, Tex. About 100 traps, baited
with orange extract, are kept in the citrus trees growing in the patios
in Matamoros. Inspection of the imported fruit in the public markets re-
sulted in the finding of 48 larvae.

December, 1930, was the first complete month in which no adult flies
have been collected since the infestation at Matamoros Was found in Sep-
tember, 1929.

During February 32 larvae were taken from oranges offered for sale in
the market at Matamoros. These oranges originated at Montemorelos,
Nuevo Leon, which is located about 100 miles below the border. Fruit
imported to the market at Matamoros from the southern part of the Reput
Dlic of Mexico showed a heavier infestation in February than at any time
since September,- .1930,. A total of 241. larvae were taken from fruits
which were discarded by the merchants. Many of the infested fruits are
sold before evidence of injury becomes apparent.

This insect was found near Monterey, Nuevo Leon, Mexico', in pista-
chio nuts (Pistacia vera). This represents our first record of the in-
festation,'of pistachio nuts.

PARLATORIA. DATE SCALE (Parlatoria blanchardi Targ.)

Considerable intensive inspection was carried on in all areas and
seven infested palms were found--five in the southern part of the Imoerial
Valley, two. inthe Coachella Valley, and none in Arizona. A survey of the
northern part of the Imperial Valley was completed during March and no
scale found. No scale has ever been reported from this area.

During the past calendar year fewer infested palms were reported in
the Coachella Valley than during any year since the work was inaugurated
in 1914. :

During the past four months 3,109 fan palms were inspected in areas
in the Coachella Valley where date palms heavily infested have been found.
in the past five years. Forty-five palms were found lightly infested,
and these all within 300 feet of a rather heavily infested date palm.

A new infestation of 20 palms in the Imperial Valley was found during
January. This planting consisted of 29 seedling palms about 16 feet high.
One leaf on one of the palms was very badly infested. The infestations
on the other 19 palms were light.








PIi]. B2LL 170FJ4I (Pertinophora z.ssypilla Saunrd. )

Infestations have been found in the crop of 1930 in the following
counties$ Grahamr, Pinal, Uaricopa, ani Pima, in Arizona; Chaves, .dy,
Otero, Dona Ana, and Luna, in Mexico; Presidio, Brevster, Reeves, "-rd,
Thidspeth, El Paso, Andrews, E-ctor, -i-d l'idland, in Texas.

The infestations in Ai8dr-'"s and Fctor Counties were found by field
inspections, the others ha.vin, been found by the use of the gin trash
machines. Specimens were also found, with the machine, in trash from
all seven gins' in the Juarez Valley, in Mexico, which is just across the
Rio Grande opposite the El Paso Valley.

The infestation in the Salt River Valley of Arizona is now known to
exist in the following general localities; South and southwest of Tempe,
south and east of CIhandler, the vicinity of Coolidge, and T,ehi section,
near Laveen, near Glendale, and a few miles west of Avondale, which is
about 25 miles west of Phoenix. These infestations are so light that it
is only with great difficulty that specimens can be found by field
inspection.

GYPSY :"OTH (Porthet-ria dispar L.)

Approximately 25 of' the most experienced and expert employees of the
Scouting and Extermination project have been man:in-: an intensive examination
of the tree growth in Dukes Park, Somerville, 1T. J., where the gyps: moth
was discovered in 1920. Much of the growth t xan-.I'ned consists of Koster
blue spruce trees, many of which are of lar-e size. No infestation has
been found this year in the area examined in Dukes Park up to January, 1931.

A report was received in December from the New York Conservation
Department stating that appro-imately 35 r--- clusters had been found up
to December 23, 1930, at 19 points in the vicinity of Roslyn, L. I., where
a large isolated infestttion of the insect -:as discovered darly last year.
Intensive scouting operations are being continued b' the State in the
vicinity of this infestation.


-7c)-








INSECT CONDITIONS IN PORTO RICO DURING JANUARY AND FEBRUARY, 1931.
M. D. Leonard
Insular Experiment Station, Rio Piedras, Porto Rico.

Beginning last December a general infestation of the yellow cane
aphid (Si-oha flava Forbes) has been building up in the western end of the
island. Continued dry weather, and in some sugarcane fields a consider-
able percentage of parasitism of the larvae of the predacious coccinellid
Cycloneda sanguinca L. by a chalcid resulted finally in considerable
damage to young ratoon and plant cane. The principal area involved includes,
from northwest to southwest, the towns of Isabela, Moca, Aguada,Rincon,
Anasco, Mayaguez, Hormrigueros, San German, Cabo Rojo, Lajas, and Guanica.
Several local representatives of the Department of Agriculture told me
that this has been the worst infestation for several years; not only
Japanese cane but also P. 0. J. 28-78 have been affected.

Sugarcane mealybugs (Pseudococcus spp.) are present in moderate
numbers in several sugarcane fields examined near Arecibo and Barceloneta
during the latter part of February. The agricultural agent at Mayaguez
has reported that mealybugs have been p-oresent in that general section
since the first of the year in moderate numbers, which is normal.
The agricultural agent at Mayaguez reported that during February a
planting of about 500 acres of sugarcane near Hormigueros was found at
cutting time to have about 90 per cent infestation of the sugarcane borer
(Diatraea saccharalis Fab.) and that the sucrose content was considerably
reduced.

The field manager of a large sugar central near Agudilla told me
recently that -nite grubs (Phyllophaga spp. ) had been considerably
reduced during this past season largely owing, he felt, to the introduction
tw-o years ago of a number of toads (Bufo marinus) which had increased rapidly.

Mr. Hein reports that he had found a fe" papaya fruits infested by
the papaya fruit fly (Toxotryoana curvicauda Gerst.) in and near Lares.
several times during January and February.

A light infestation of beans at the Experiment Station by Heliothis
obsoleta Fab. was reported in February. Less than 1 per cent of the pods
in about 1. acre was injured. (A. S. Mills.)

One larva-.of Maruca tostulalis Geyer was found at Rio Piedras in a
pod (Crotalaria sp.). A light infestation of larvae in blossom buds and
pods of lima beans occurred at Rio Piedras and also a light infestation in
pods of string beans and pods of pigeon peas. (A. S. Mills.)

Larvae of Phlyctaenia rubigalis Guen. did considerable damage to the
leaves of both lima 'hand string beans at Rio Piedras. (A. S. Mills.)

The bean lacebug (Corythucha gossypii Fab.) is present in nearly all
string and lima beans examined, in much smaller number than during the
past summer months. (A. S. Mills.)


-76^




-'71-


A leafhopper (F.poc. sp.) is abundant an.l injurious in both lima
and string bean fields at Rio Pi-LraFs. (A. S. Hills.)

Larvae of UJtetheisa ornatrix L. are abundant in bean pods at Rio
Piedras. (A. S. Mills.)

rimprepcs cc.n-leri L. i. found aatin. the leaves of string beans at
Isabella. (A. S. Mills.)

FSgplant fields at Rio Piedrzs, Dorado, Humacao and several other
places on the island were infested by the ejplant lacebug (Corythaica
mong.cLa' Stal). In several fICldr the insect '.'acs very abundant and
causirn much of the leaf surface to turn 7h.ite. (A. S. Mills.)

MIzus persicae Sulz. is present on egrplant in small numbers in
Rio Piedras, Dorado, H,2'.acao, and several other places on the island.

Epitrix cucuneris Hirr. was nmod.erately abundant on about one-half
acre of eg.Tplants at the Experiment Station at Rio Piedras l'te in
Febnirry.

About 50 acres of onions in some patches which 'had not been sjpr--ed
ne-.r Arecibo were examined on February 18 .,nd found to be b .,ly infested
by the onion thrips (Trips t..baci Lind.).

The melon worm (Dia'p'.lani". ".'r,-iTint% L.) is moderately abun.dant at
Anti in squash and cucumber nand in cucumbers at Arecibo. (A. S. Mills.)

About 20 per cent of the tomato fruits of a small garden near Rio
Pledras were being punctured b' 'Tezara viridula L. (A. S. Mills.)

About 50 percent of the fruits of tomato in aP. small garden near
Rio Piedr-.- were beIn- punctu-..re'l by Phthia picta Drury, all st,.-:cs being
present. (A. S. Mills.)

About one-half acre of caba.,e near Rio Piedras was consic'rr.kbly
infested by the diamond-bacd moth (PFl-atella m ac:.l!;cnuis Curtis). Most
of the leaves had feeding holes. A very bad infestation was l.so
observed on a small patch of cabbage :t .theS..-riment Station late
in February, some plants beiL. totally destroyc,. (Leonard and Mills.)

A light infestation of the corn ear worm (.-liotM obsoleta Frb.)
has been observed at Rio Piedras on pepper and a moderate infestation
at Rio Pioceras and Arecibo on tomatoes. (A. S. Mills.)

A li-'ht infestation of a stirn2-bug (Arvelius rib:,.ct.tug DeG.) on
pepper hag been, observed at Corozal. (A. S. Mills.)

The last of Fhrupriy two cotton fields at Conrao near the south coast
were quite badly infested by th'. cotton leaf worm (Al'b-.a arqillac'2a Thbn.).
The insect w- ;,cr-7 injurious from about the middle of December, 1930,




-78-


throughout January in tle Villalba section comprising about 1,000 acres
of cotton and also at the same time around Coaino; a bad infestation also
occurred during January at Guayanilla on the south coast and late in
January at Carolina (comprising about 300 acres) on the north coast east
of San Juan, which has the same planting date as has the south-coast crop.
It is believed from continued close personal observation that the leaf
wonnrm was present in injurious numbers somewhere in either the north or
south coast (there is no cotton brownn elsew'.iere) during every month in the
year 1930. Continued close observation- on this point may throw some
light upon the origin of the well-known periodicity of outbreaks of this
insect. (Mr. Rorke.)

The whole south coast, comprising 10,000 acres, is generally infested
with the pinkr boll worm (Pectinophora gossypiella Saund. ). Infested bolls
were first noticed at 'the start of picking in late December or early
January and the number has steadily increased. The situation is very
much worse than it was last year or during any previous year. Late in
February a 3,-acre field near Ponce was found.to have 95 per cent infested
bolls. About one-third of the crop in the south coast was picked by
February 28. The crop in the north coast (west of San Juan) is still
composed only of young_ plants. (Mr. Roio.)

A cotton stainer (Dysdercus andreae L.) -was more abundant than usual
in cotton on the south coast during Februar,,r and possibly part of January.
(Mr. Rorke.

A blister mite (Eriophyes ,ossypii Banks) was common in one cotton
field of several acres at G.?-n'!ll, during February. (Mr. Rorke.)

A leaf miner (Nepticula gossypiiForb.) was fairly common on cotton at
both Coomo and Guayanilla during' February. (Mr. Rorke.)









INSECT CC-JMITf0t",S '14?XICO UP TO .ARCTI 9, 1931.
A. H. Amis end A. 7. 1 orrill.

Cutworms (Noctuidae) have done little or no da;?.:e during. the
present season. These insects usually, cause considerable Lamge to the
first setting of the tomato crop.

A flea hopper, ,Halticus bracteatus Say, has beer. practically absent
during the present season, as has been the case since its unexplained
decline in numbers during the vegetable season of 1926-27. For a-period
of two or three years endid.- with the calendar year 1926 this insect
caused extensive damage to to.:'atoes in the State of Sinaloa, but during
the last years has rarely been found in tomato fields and only occasionally
in seed beds during the fall months.

A leaf 'Tolder (Phthorimaea lycopersicella Busck) was at first quite
severe in the tomato seed beds and early plantings, in the fall of 1930,
but up to the present time (March 9) has been doing little or no damage
to the fruit. It is invariably present in injurious numbers during the
latter part of March and through April and MIa'" and d r;e is therefore
anticipated.

A stalk borer (Trichobaris sp.) has been rather serious on tomato
plants in the river sections in Sinaloa. This is the first observation
of noticeable damage from this insect during the past eight years of
observations. The cocklebur is an alternate host plant.

The potato aphid (Macrosiphrm solanifolii Ashm.) has been unusually
prevalent and has done considerable dimnage to bell peppers this season in
the State of Sinaloa.

The. pea aphid (Illinoia pisi Kalt.) has been unusually abuTndar.t on
the entire west coast of Mexico where peas were planted, especially in the
Puerte and Yaqui Valleys.

The corn ear worm (Heliothis obsolete Fab.) has been responsible for
only a small, percentage of loss of corn this season.

The last cotton crop on the le7rlcan west coast was seriously affected
by a mirid bug. Presumably the Mexican spn..-cies is the Fwei as that
Identified by Dr. Knight in 1q28 as Croor.tia.4os i-Db1 Is Var D. rhich
attacks the squares in :i manner similF.r to th attack of Ihrus elisus
Van D. in Arizona and California.








-80-


INSECT CONDITIONS IN GUAT]UALA DUJRING J201LARY AND FEBRUARY, 1931
Marston Bates
12 Calle Oriente No. 1, Gu-.tcmala.

Aphids (Aphiidae) are among the most injurious insects of agriculture,
and we have many injurious species in Guatemala.

Aphis asclepiadis Fitch is very common in the region of Tela,
Honduras, on the flowers of Asclepias sp.

Aphis gossipli'Glov. is one of the most destructive aphids in the
United States. In Lancetilla, Honduras, it has been found on Annona sp.
and Hibiscus sp. In the region of Antigua, Guatemala, it has been
attacking the avocada (Persea americana) and the loquat (Eriobotrya
Japonica). A very heavy infestation of this aphid on watermelon was found
in the vicinity of Amatitlan. Two species of syrphidae were common
predators, and may serve to check the outbreak.

Brevicoryne brassicae L. is the common aphid of white cabbage. It
has been found at Tumbador and San Marcos.

Macrosiphum luteum Buckt. was found in an orchid in Tumbador.

Two species of Myzaphis attack roses in Colomba and Tumbador.

Myzus persicae Sulz. has been found on oranges at Guatemala.

Toxoptera aurantiae Boyer is the common citrus aphid in Guatemala.
It has also been found attacking cacao and coffee in Zacapa, Colomba,
Antigua, Retalhuleu, and Guatemala.

Neotoxoptera sp. was found injuring frijol (Dolichos sp.) at
Chimaltenango.

Severe injury to potatoes by wireworms (Elateridae) was reported
from Tecpan.

Cerataphis lataniae Boisd. is an aphid that attacks the young palms
in tropical America. In Lancotilla, Honduras, it attacks the palm
Ptychospcrma sp.

Stenoma annonclla Scpp.- A common pest in lowl-i-.ds of Honduras,
it was bred from Annona mruricata from Virginia. It is our first record
from this country. The fruits of various species in the high lands are
frequently infested with two species of Lepidoptera, but the Stenoma has
not so far been found.

The oviposition scars of an undertermined insect were very common
in certain fincas of the Antigua region in February and March of last
year, but not r'tside of this district. At that time I was unable to











determiine the cause of the trouble, as constant travelling did not per- .
mit breedi -'g .vor'. This -ear when the sane scars appeared again, we
were able to breed out the a.'im1s, fiodim. them to be crickets. This
year the appearance of the scars -"ac first reported in January. A
hasty survey showed that the pest could be found in almost all of the
fincas of the Antigua region, although not common in many of them.
The most severe infestation so far found is along the edge of a planta-
tion, near extensive cane fields. Jars with syrup have been buric in
many likely places, in the hope of catching adults, but so far with no
success. In fact, the outstanding mystery in connection with this
plague is: where are the adults? Perhaps it is the wrong season, but
the freshness of the oviposition scars would seem to contr?.dict this.

The cottony-cushion scale (ILcrya purchase ?.sk.) was found very
abundantly in gardens in Qucz.ltenanzo "y.: u...ch. ctonango. The plants
affected included Citrus, Acacia, Laurus, rose, apple, Mimosa, beech, and
ivy. Specimens were sent to Dr. Morrison to check the determination.





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