The Insect pest survey bulletin

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Material Information

Title:
The Insect pest survey bulletin
Physical Description:
v. : maps ; 26 cm.
Language:
English
Creator:
United States -- Bureau of Entomology
United States -- Bureau of Entomology and Plant Quarantine
Publisher:
Bureau of Entomology, U.S. Dept. of Agriculture
Place of Publication:
Washington, D.C.
Publication Date:
Frequency:
monthly, mar-nov. plus annual[1926-]
monthly, apr.-nov.[ former 1922-1925]
monthly, may-nov.[ former 1921]

Subjects

Subjects / Keywords:
Insect pests -- Periodicals   ( lcsh )
Entomology -- Periodicals   ( lcsh )
Genre:
serial   ( sobekcm )
federal government publication   ( marcgt )

Notes

Dates or Sequential Designation:
Vol. 1, no. 1 (May 1, 1921)-
Numbering Peculiarities:
Vol. 14, no.9 issued only as a supplement..
Issuing Body:
Vols. for May 1, 1921-1934, issued by the U.S. Bureau of Entomology; 1935- by the U.S. Bureau of Entomology and Plant Quarantine.
General Note:
"A monthly review of entomological conditions throughout the United States" (varies slightly).
General Note:
Includes annual summary starting in 1926.
General Note:
Includes some supplements.

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 030368280
oclc - 08816534
lccn - sn 86033699
Classification:
lcc - QL1 .I56
System ID:
AA00023228:00030

Full Text


- L


THE INSECT PEST SURVEY

BULLETIN


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


Volume 6 March 1, 1926 Number 1


BUREAU OF ENTOMOLOGY

UNITED STATES

DEPARTMENT OF AGRICULTURE

AND

THE STATE ENTOMOLOGICAL

AGENCIES COOPERATING
















Digitized by the Internet Archive
in 2013










http://archive.org/details/insectl 926mar








Ccll-or.tortos of -the ,n- te t s Departm:ent of A-riculture
acting a_ _pr t..e for the Insect Post '"-.

Alab&-a Dr,, J. M, 7Ro- incon, Dcpt. of 6'-hto7olco- and Zoolo-gy, Alabama
Poly-, echn, Inst tut e ... ....
AL- ,-nn Dr. Oscar Ba'rtlett, tte nto.n, lgi t, !.c.ii..
..'VVE ..ri.c a ... W. J. Baer 3ntomolcglt .- lra ,aion,
Fayettevi leo
California Dr. W. 3B, Herms, Head of Diision of Entomology and ?.:.-sitolozy,
University cf California, iBerkel,:.
SH, S, Smith, 3 olost, Ciw.. *- rient Station,
River side.
.".h' Theodoro Urbains D--partment of Agriculturo, Sacramento,
Col'or-.o Dr, C. P. Gillette, State Entomologist, Lgriciltijral .'..'---imont
Station, Fort Collins
Co0-r 3: ti it Dr, '7, Britton:, State t-.oooit, -7 gricl a irnit
Station; I :-aven,
r Prof. C. O. I0"ouhkton, BIoloist, AgSic1._t2ral xperizent Station,

Fnria r Dr. Wil-non Ie--ll, Plant Commiscsicner, State Plant Board
Gainesville.
....." ": ergin State Doord of
_"a? _Y-'l .r. :laliard De La Farelle, Entomolcist, eorgi tate oard of
Entorol- -.-., Atlanta,
I'-.Io !I,. Claude 7Takcland, Experiment Staticn E.itc.:c1logist, Box 37,
Paorrnma
I ]iS-oia Dr. 17. P, 7li nt,]n' arnoIo.-irt State Nau --I History Sr-.' y,
Urbana.
nr a. 1- a- F', Q T,-.. t
!nc'iana Prof. J. J D.vi, omoFlgit urdue university .^.,tteo
3s! D. Carl J Dar? .i L,' partnent of Zooloy and -:'onmoIoy -Owa
St~azce Clee re
L*nS .s Prcf;. Gao,. A1. ean9, r-rcornologist, Agrricultural 2xparirrnt
Station, T :. t
-rof. J, .. "Jc~olioch, EntomoloList, A,-,r icul rtuall i''.-..c _me
Station, P' anha tan.
Dr. o B3., :-unger-ord,,. Head of D 'itment of entomology, Universi. ty
of "nsas, Larence,
.7icy Prcf. H, Gar-an, En0c1ologist, AgricUtural Spariwnt Stati on,
e:.: ir. t cn,
L,.,iria-La WDr. Vv Hinds, Entomologist, .Agricult-ural andt Mechanical
College, Baton R'0g-e
ln, Dr. 7 :. Patch, Entcrmolo-ist, 2Ejxculm'al Experiment Station,
Grono.
"r- ry &and Prof, E. N. Cory, State T..tomolo-ist, Jarind .niversity,
College Park,
.'.. '--,-,.'..1 D, i T, Fernald., Br.tcmolodist, Agricuitural T":p",imnt Station,
S'; .e rst
:.Ai'. '"RDr. P.. t. +ettit,1 entomologist, -- 'i cultural E -xperime nt Station,
East Lan~in-.
'i.n:-Aa. Prof. AG C- RuGles, State Entomolopist, University Farmr St.
Pau!.
c'i ss iLnoi Prof. 2. 7. earned, Entomoloist, State Plant Board, A-:'iJcltural
Col.e e
"'0,-our1 Dr.. !'Haseman, Fntcmologist, Agricultural E-::pcriment Station,
Cc.nc ia.
:'ont4na Yrof. R. A. Cooley, State nurooiogst, Agricult ural ':y:riment
Station, Bozemrnm.
--3-








: braska Prof. H, S'"::.-., State rntto..loris., Univer-ity cf Nebrao-:a,
Lincol:.!.
-r. Don B.. .;!2n, Dep,-- 'tent of hntomology, 7-iversity of
"/ "brsa, Lincoln.
'ida Prof. C. ".: r_', ntomol-lst, U:niversity of Yevai a,
7 uno.
.... p.ire Prof. 7. C. O'Kme, T.tcmolocist, AgriculturJal Z::--rir.ent
*~ t3t ion, --urhiam.
:e Jearesey Dr. T. J. Headlee, State :.' rnoloci st, A'-ricultural -:,perir.ent
Stat ion,' T'-7 BrxrFs'7icK.
iMr. Earry B. T:eics, Chief of Bureau of Statistics arJ Insp2otior,
Department of 2"..imculture, Trenton.
Few York Dr. 5. I. F-elt, St'ate entomologist, University of the St.te
of 1Tew York, Alb'any.
irof, C. R. C'rozby, Extension --ntcmo1oist, Cornell U,-iersity,
thaca.
Ir. P, J. -.tt, tnc-,oloist, A. L-ricultural Experiment Station,
Gean'r-.
-''th Carolina Mr. Z. F. Metcalf, Ue'-i Departm-rt Zoolo-gy --I Entomolo-_.,
State College Station, Riei .
r. J. S. Ko A- cs" ,..u >"turimznt Station, Wooster.
Dr. Herbert Osborn, Eitomoloiist, Ohio State University,
Coiu'ri'u s.
Dr. R. C.!Cburn, Entomolc-ict, CO.-io State Universit.-,
C o lumbu s.
Ck.oma Prof. C. 7. Sa norr, .Entormologist, A-ricultural E::-erimert
St tion, Stil-at or.
Crcon 'Mr. Don C. Mcte, Or0 ,, Agricultural ColI.-o, Corvallis,
ennsyl;.':..i' Ur. C.L-. Hadi.", Director B, ru'. of Plant Tndn.stry, State
Dlpa"tmet of agriculture, rris':u--.
Rhode Island' Dr. A. E. Sten_, T-ntomclogist" ""ate Poard of Agriculture,
Xino-t on.
So.t.h Caro.1.1rn Prof. Fr,-r'.-iin .h ,rs,.n, Division of .tomola'- and Zoology,
Clemson Collegec
South Diko Prof. I:. C. Cevc'.rir n State A-'omolooist, A.-- cultural
Zper iment Station, Broc.-'"l.
Torne-'t? Prof. G. TL. Benti:-., State rtorolc-ist and Plant Patholcist,
Stte Boardi of A "ri-lture, Il
Texas Mr. F. L. '--omas, P-.' cultural Exeri-mernt Station, College
Station.
Virginia Prof. W. *J. Sc.cne, State EntcmoloFrist, Crop Pest Comnission,
B31 zckzbur g.
Mr. Herbert Spencer, Vir.inia Truck .y' .rimenz St: tion,
i r rf li:
7ect Virrinia Prof. W. R) i,,, State -Ito-,loi st, Agricultural
3xr im nt ,,ut ion, orranlt oxnm.
Prof. L. I%. I-' "' nL-omolcgist, A-raiculturaL E-,-ri :--mnt
Sta"cn. ,"U '..tovn .
.sccnns .n Prof. S, B. ::,:er, Stato Entomoloist, State Depgrtment
of A,-riculturc, -L. 0son.
Prof. H, F. FDlson, ?,ntomclc.^ist, University of Wfiscon-in,
'T.. :dtst








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I'N S E C T PE ST S U R V Y BULLET IN


Vol. 6 r "crch 1, 192 ITo. 1


OUTS3AirI IIT-- EI1 OMMOLC,,'I CAL. F1TURBES, IN' TE UIT_:D STA.TES FOR iIT .:... AID
D cCMRAM. R, 1925, A'D JANUARY, 1926

The present depature in issuing a midwinter number of the Insect
Pest Survey Bulletin is the result of a conference of the Survey v;orkers held
in connection w;ith the annual meetings of the American Associ tion of Economic
Entomolcgicts at Kansas City, 'o., this winter.

It -';s felt that a surmary of the known conditions of several of otr
more important insect pests throughout the country would be of material
assistance ta the workers in outlining their program for the coming spring
and sumner.

From the reports received it would appear that the Hessian fly is at a
very low period of its aburdarcc in th-e ,middle',Atlantic 2rA East-Central States,
as well as In the Lake region, with the exception of Illinois, where early
s kwn wheat shows hev: infestation. .The low ebb seems to extend southward
through Missouri and west'-ard to South ,Drkota and Nebraska. The situation in
Kans-Is however, is much more critical and reports in general indicate serious
abundance over tlihe 6Treater part of the State, On the west coast reports indicate
that abund.Z.ce of- the fly is below normal in Oregon and California,

The chinch b ug situation is generally favorable over the '-zt-Central
States becoming more serious at the western extremity of its distribution in
v-6-te e-; .... en 'y of it s distribution in
.Icbra ska and Xansas'.

The gr enbug is reported only from'sIall* areas near Shcrr-an and Rochelle,
Tex '
The grasshopper situation in general appears to be favorable. A some-:h.;t
severe infestation ray be expected in Hill County, Mont., next season.

The San Jose scale is reported as slightly more prevalent than a few
:,,ears ago in Connecticut and Rhode Island, whereas the general upward tren.
noted in New York State and Pennsylvania the last few years seems to be
receding. In Virgiria dnd Georgia the scale is decidedlyy more serious then
usual. In the East-Central States 'the scale is on the increase in Illinois,
while northwest of this region in Wisconsin, Minnesota, and Iowa the insect is
not serious. South of this region in NisEouri, Arkansas, and TKansas the
insect, though present in practically all orchards, seems to be well under
control. In the Pacific Morthwest, Idaho reports that the scale was very
materially set back by the severe r7interf of 1924..25,

The boll weevil situation dobes.not qippear serious in the fringe States
which border its range. In Arkansas considerablY more weevils went into
hibernation than in the fall of 1924. The sane. condition prevails iu Louisiana
and Texas. '



STATE tLAI BOARD








HESSIAN FLY (Phvtophaga destructor Say)


MIr',L ATLANTIC
STATES









7Tew Jersey



Virginia

EAST- !TTRAL
STATES



















Kentucky



Michigan







Wi sconsin


C. C. Hill: Surveys of the principal -iheat.-growing
regions of the States of New York, Fennsylvania, Maryland,
Delaware, and Virginia show a very low infestation from
the Hlessian ..flIy throughout these regions. For a number
of years the prevailing practice in these sections has
been to sow wheat after the fly-free date, and there is
every evidence that the present light infestation of the
fly is due to this policy. Althc'u_ the fly is universally
present in small numbers, yet even the early sown fields
Showed very light infestation, '

Thor-ns J. Headlue (Letter dated Janiary 16,1926): This
insect is not sufficiently abundant in this State to
threaten injury.

71, J. Schoene: We- have no- recent reports on the Hessian fly.

V., 3. Cartwright: All available records show no infestation
of the Hessian fly to wheat sown after the recommended
dates. In most of the localities represented by the survey
it appears that the wheat could have 'been drilled a few
days earlier than the safe seeding dates. Ho-ever, in
locations from which egg' deposition records supplemented
the other fly records, infestation by fly eggs occurred
on the swings just pricr to these dates, whereas later
records showed no resultant larval infestation. The
inference is that the young larvae were killed by the freezes
and hostile weather conditions of October.
Infested volunteer 'heat in stubble and fallow :fields
has formed a basis at least for a minor spring brood of
flies, but no damage is foreseen. In the fall wheat swings
the fly is at a low mrcrk but unfortunately the adverse
season for seeding wheat and the possible winter kill to the
delayed swings in the northern section have overshadowed
the success against the Hessian fly. To date there has been
no evidence of winter kill ok wheat plants or retardation
of growth.

H. Garman: I have had no complaints of the Hessian fly
recently ani from all indications it h-ts been rather
scarce in this State.

R. H. Pettit, The Hessian fly seems to be present in small
numbers except that in three localities it seems to be
fairly plentiful. Albion, Kalamazoo, and Battle Creek
showed moderate numbers here and there this last fall.
During the spring ve examined into the situation in quite
a few counties and encountered them only in the districts
named.

C. L. Fluke- The Hessian fly has idubocome quite generally
distributed over Wisconsin, but is very seldom a severe
pest. During the fall of 1923, conditions were' ideal for










































Illinois













Minnesota



Iowa


egg laying;, as a result, duri:.- the summer of 19 h4, this
insect was quite numerous over most of the ',heAt districts of
the tate. That fall and this past fall t." season -as quite
cold and rainy, V'ith the r-esult the Hossian fly -, ,asrec-t
in very small numnbe's this r ast year -*' our cents this f.-ll
show even less infestation.

A* A, Granovsky: BeiA ng attache 1 to'ore of the branch experiment
stationn. o-hicrh ies located at Stur geon Bay, Door Coirnty, Wis.,
Shad the .opg.-.,r'':'.-ty to observe considerable damage caused by'
the nessian fly.during the summers of 1923-24.. This lact su-mne r,
1925, the Hessiasn.,fly ,as a very u-important factor, though
present in a few grain fields. The only reason-that i can think
of fC. the reduction of the H:essian fly infestation this last
summer is, the fact that we had a prolc-:_. rainy season in 1024,
This, no doubt, prevented the Hessian fly from oviposition on fall
,7rheat seedlings.

S. 3. -r.cker: This insect is rare in.Wisconsin and has not been
of economic i.portarco for several decades. Wisconsin {rc s
only 65,000 acres of winter wheat and this is adoly scattered
in localities v.i: ying from year to :--ar. Since the insect pest-
survey was established tMe H-essian fly has -ten collected in
Richland County in 1921, in Dnaie Cou-nty in 1922, ann, in
Trempealeau and Door Counties in 1923 and 1924. There are no
notes for 3.925 except the observations of A,. A. Jrancvsky of the
agricultural cx-,"riment station at Sturgocn Bay,

W. P. 7lint: The e7:.'M'.jn: ionSof early sown wheat fields in all
parts of the State have sho..n a heavy infestation ", t Ht- C
fly in all wheat sorn up to-i-ithin a reek or five days of the
normal fly-free date. W h-.jt sown after the fly-fre' date, or a
fe-v days before, shows alr.j:st no infestation. Apparently in -th
early sown. fields, numbers of the egrs and very s.-all l-arvae
.ere killed by the unusually cold weather occurring during
October. The fly is practically all in t-.e largee mgot- or flax-
seed stage, and there is e-.very indication that it will survive
the winter. Volunteer wheat is not.quite so abundant as in the
fall of 1924, but is present in many fields in sufficient -uantity
to carry through a considerable brood of the fly to next spring.

A, G. F-.u .-.Jel T.. "-he T'.sian fly ., not given us an- serious
trouble for a number of ye-rso I have seen it in winterr wheat
several times but the damage 7sas not at all serious.

Oarl J. Drake: Iowa su-ffered no commercial Hessian fly los-z>
in 1925. This is the result of an intensive Hessian fly campaign
carried on during the last three years. From 90 to lC1 per ccnt
of the farmers in the principal winter-wheat--row'ing re-dion -f the
State cooperated and in the fall of 1924 put off drilling until
the safe date was announced.
The past fall, 1925, some of the farmers in Plymouth, Monona,
and Harrison Counties drilled a little too early and there will



































South D:kota








Kansas <'a.r3
a, Iorus








Kansas and
ITbraska



1"orth'c stern


Missouri


undoubtedly be a little commercial damage in these counties.
Very little -inter r'heat "as sown in Plrl'citi and the farmers
felt that it '-ould not be necessary to observe the safe-seeding
date. Although the acreage is very small in this county a few
fields aro badly infested. A dencral Hessian fly survey -7ill be
made this spring.

IL. Haseman: Stubble records last sunrner showed practically no
infestations, and youngg plants from experimental fields this
-'inter show no infestations; 50 to 75 per cent of wheat '-as seeded
and most of it very late owing to prolonged wet weather this fall.
Reported from NodaTao.y, Jasper, Johnson, Greener, Boone, Crarford,
St. Louis,'and Mississippi Counties,

J. R. Horton; "Fly" at extreme minimum abundance in southeastern
Misscuri; little ,.heat sown, none before earliest safe date,
bc:._uso of continuous rains during seeding period in southeastern,
I'o. Very few oxcption.lly early sown fields in south'-eTtern
Missouri, but those dangerously (up-'ards of half the stems) irn-
*fasted; -'et fatherer very fortunately prevented song until long
after the earliest safe date in southwestern.; Mo., too long for
best entry of heat into winter. "Fly" at minimum abundance in
northern Missouri; practically no fly in early sown or volunteer
-'heat; much wheat sown early, into winter in sturdy condition.

H. C. Severin: The Hessian fly is found in South Dakota but has
not aprcor in any nazb:-rbs rarr.rntinr any alerm.

I. H. S'-enk: In general tli-; Hessian fly is present in reduced
numbers as compared to a year ago. L-re areas of heavily in-
fest i territory are much less numerous, though of course in a
number of localities there arc plenty of fly pupria in the wheat
at this time.

J. R. Fo-ton: Abund-nce in general high, increasing, peak not
,'-t rcch-cd. E'.rly so-n wheat from one-fourth to one-half of
stems inf ested in southern Kansas and northern Oklahom. Wheat
into winter in good condition except that considerable has ben
killed by fall crood larvae.

J. R. Horton: "Ply"at minimum abundance. Early sorn heat generally
not at all or but slightly infest :d in northeastern Kansas and
southern ,T.braska. yost of the heat "safe" sown; rather poor
:ro'"-t for entcrinp winter.

j, R. orton: Abund:nce hi-rh, perhaps aprroachini peak; except
in e:.-treme northwestern counties. Early so-n -heat ever north-
',cst'rn rns-s about hr-lf or more of stcms infested except
in northeastern counties, ncglipible. Most of -heat "safe"
so-n, into '-inter in sturdy condition. Earliest safe so-ing
d no infestation, any locality, on or after this d.ate.

J. X. McOolloch: A survey of thei Hcesisan fly situation made


Kanc,.."








-- .II-


during December shows that conditions are still serious over most
of the State. Xansas has .planted 11,395,000 acres to wheat and
approximately 8,000,000 acres lie -in territory where the fly is
present. Several interesting conditions; have arisen this year.
September was one of the warmest Ind' wettest Septembers on record.
Two periods of zen.raly heavy' rains over the State brought about
a simultaneous emergence of the fly over practically all of the
whbeat area. So far as we can de termine, very few flies emerged
after September 29. In eastern Kansas-;i very little wheat had
been planted at this tin e, nd; as a result, -the regular sown
crop is comparatively free of the fly ...There is a large amount of
volunteer wheat, however, and this 4s heavily infested. In the
western half of the State, wheat sowing was well along in nmny
counties by September 26, and there is a heavy infestation in the
regular crop. The warm, wet September was followed by the coldest
October on record for the State. As a result, the maggots developed
slowly and very few had reached, the 'flaxseed stage by Decenber 1.
-or the most part, the maggots ".,ere from one-half to full grown
on this date. It is going to be of considerable interest to follow
this situation through the winter and observe the results in the
spring.
The- following records give some idea. of the. infestation with
fdgtrd to date of seeding based on experimental plots:
Per cent Per cent
Ford Co. Planted Plants infPsted Plants dead
Sept. 1 100 50
Sept. IS... 5
Sept.25 .0

Commanche Co. -Sept.18 30
Sept.25 13
Oct. 2 O0

Clark Co. Sept.26 27
Oct. 2 .0

Rice Co. Sept. 1 30
Sept.13 25
Sept.25 5
Sept.?0 50
Sept.30 0

Barton Co,* Sept.12 90.3 90
Sept.19 60.4
Sept.26 15.0
Oct. 3 0.0

Aver-L.ge of' four tests

Rush Co. Sept.17 67
Sept.24 33
Cct.. 1 1
Oct. 9 0
i




1!


-12-

Ness Co. Sept. 10 74 .
Sept. 0 5 .
Sopt. 233
Sept.. 2 0 '

Avcrageof two tosts

In Butler, Chase, Grecnwood, and' Harvey Counties, no fly was
found in the date-of- seeding test, owirng to the fact that all
the plots -nere sown after Se'p.tember 26, txmination of early
sown fields and, of volunteer wheat, showed a. very .heavy infestation.
One field in Butler County, sorn September 20, had every plant
infested. (January 22): We ave a report of the Hessian fly
from Garden City, Finhey County, Kans.; this extends the range
of the fly about 30 to 40 miles farther. westward in this particular
section of the' State. The wheat which was sent in contained
many flaxseeds, and the 'county agent states that in this particular
field the wheat is very small, and much, of it appears to be
dead.

Oregon Max M. Reeher: Oar counts of the Hessian fly on spring what
in the lower Willamette Valley for the season 39,55''varied from
2- per cent of the plants'and 0.9 per cent of the tillers to
50' per cent of the plants and 23 per cent of the tillers. The
average of.all fields counted was 25.6 per cent of. he. plants
and 11 per cent of" the.. tillers. 'or comparison tithe 1924 counts
varied from 11 per cent of the plants and 0.9 per cent of the
tillers to 73 per cent of the plants and 29 per cent of the
tillers, the average being 35 per cent of the plants and Is
per cent of tie tillers. On account of the dry fall there was
very little volunteer wheat and most of the' plowing and seeding
of winter wheat was delayed until t.bo late to become infested,
The dry weather also resulted in a light fall emergence of the
fly, so that next years infestation will probably come from
flaxseeds lying over in the old stubble from the previous
seasons.

California T. D. Ujrbahns: The Hessian fly is limited in its destructive
abundance to the wheat growing areas of the counties bordering
the lower Sacramento River and San Francisco bay districts, and
also San Benito and Sonoma Counties and possibly, to a slight
extent, some of the other coast counties. In these localities
the Iessian fly is active in the fall,,, winter, and spring, and
spends the sttrmBr months in the flaxseed stage,

C. IA. Packard: The Hessian fly pupariaare still mostly quiescent
in last seasoris stubble. An insignificant number pupated during
December, but practically no'-infest-'ion of yocun. wheat has yet
occurred. Throughout most of the region where it occurs the
infestation last year was very .. eight, few live puparia are now
present in the stubble, and injury to the current crop is very
n ry .te: the current crop is very
improbable. In occasional stubble fields, especially in the
Monteumzi Hills district of Solano County, enough live puparia







-15-


Michigan




Kentucky



Illinois


Mis sour








Arkansas


are present to produce material infestations in adjacent young
-heat if -yeather f-vorable to fly activity occurs during the
Spring. Tne fact tha-t gro th of Iheat has been delayed by
continued drought -nd low .tempo ratures will make it orcwhat
more su2.c-etible to injury .than usual.

CHINCH BUG (Blissus leucopterus Say)

R, H. Pettit: The chinch bugs were not very troublesome in the
southeastern part of the-State. In Monroe County, Hillsdale
County, and Lenawee County, I believe, they were present in
moderate numbers.

H, Garman: The chinch bug is not commonly troublesome here,
but during periods of special abundance in States north of us
it sometimes appears in our northern counties,

W, P. Flint: Examinations of chinch bugs in hibernation have
shown that the bugs are in good condition. There will probably
be no general outbreaks over Illinois next year, but scattered
areas of from a township to half a county vill have some inju-1y
by this insect. Our survey of bugs in hibernation to date has
shown such areas scattered throughout the central part of the
State, and as far north as Grundy County. The numbers of bugs
in hibernation would not indicate any serious trouble next spring,
unless the weather is dry, and -arm, and f r-o.-.ble to the bus
after they first come out of winter quarters.

Carl J. Drake: The chinch bug situation is not serious and there
will probably be no serious chinch bug outbreaks in the State.
In the threj southeastern counties, Appanoose, Davis, and Van
Buren, we have received a few chinch bug reports but the infesta-
tion is light. weather conditions during the last two years
have controlled the chinch bugs in Iowa.

L. Haseman: A survey of Missouri indicates that the chinch bug
is abundant and may cause an epidemic in a strip across the
lNorth-Central part of the State extending from Bates to Buchanan
Counties on the west side to M.-,'ion and Piko Counties on the east
side. A small localized outbreak may occur in Lawvrence and Greene
Counties in the southwestern corner of the State. The northern*
and southeastern part of the State did not seem seriously enough
infested to cause alarm.

Dwight Isely: The past year there w-s the most severe injury
by the chinch bug in the eastern part of the State which has
occurred for many years. I do not mean that this injury is
comparable with severe injury which may occur in Illinois or Iansas.
In the Bst-Central part of the Stte chinch bugs were present
in practically all fields of corn during June and July and in some
instances Cornfields were killed. There '-as considerable complaint
from the chinch bug in the rice section, and chinch bugs were
reported by A. H. Prince, county agent, at Stuttgart as actually






-14-


South Dakota



ITeb ra ska





Kansas

















Kentucky


Wisconsin




Mi s souri


Texas


killing fields of rice before they could be flooded. As you
may know, both the seasons of 192?4.and 1925 were exceptionally
dry and this factor w7as probably responsible for the unusual
abundance of chinch bugs.

H. C. Severin: The chinch.bug was quite a serious pest with
us a few years ago, but -has-become a negligible factor during
the past two years. .

M. H. Swenk: As previously reported, the chinch bug went,
into hie rrnation in increased numbers the last fall over a large
territory, but we are hoping that the character of the present
winter will partly offset that advantage to the bugs by inducing
an increased mortality.

J, W, McColloch: Chinch bug condition in Kansas are still
serious. Large numbers of crops .re to be"found in the clump.-
forming grasses throughout most Of the eastern half of the
State. In'addition to.the bugs hibernating in the grass, there
are an exceptionally lirge number in the corn and sorghum
fields. This is undoubtedly due to the fact that the low
temperatures of October caught mcny bups before they had time to
migrate to the grassland. Thus far the mortality in the corn
and sorghum stallk h .s Leen comparatively low.
In -nnection with lhe studies on Suain grass stubtle as
hibernating qu-arters for the chinch bug, exceptionally large
numbers have been found this year. Here, again, the mortality
is low. Many counties have pushed the burning campaign, and
in many areas all roadsides and waste areas have been burned.
GREN 5U (Toxoptera grrinum Rond.)

H. Garman: The green bug has been giving considerable trouble
recently on bluegrass in early spring. I found last season brown
patches of the grass where it was especially common, and am
looking for it again this season, I did *not fini it on the
bluegrass in the fall and assume that it hibernates on wheat
or cther small grains and comes to the bluesriss only in early
spring,

C. L. rlule: Thic aphid is becoming more numerous e2ah year
and this past suzmer it was quite comr'mon throughout the southern
and eastern parts of the State and was considerably more numerous
than'it was last year.

L. Haseman: HEav.e observed none and -avc h'd no complaints about
it this fall and winter.

F. L. Thornia: Mr. Gnble has sent this office inforr:2tion ith
r-ference to gresn bug infestation which he ir.vestigated in a
field near Shcrrmn, Tex. This rs 'a small infestation and was
the only one v-hich he could locate in that territory as a result








-15-


Colorado





Arizona



California


of the complaint r'hich he received, Another occrrrenc: which
--as reported came from rnFc.lle, Te-. in cCulloch County,
and is apparently of "..ter extent. Immediately following
this report a freeze occ.rred O'"ich eliminated all. the bugs,
according to '-the corresponent It has been impossible for
us to make personal examination of this, place, but we are
transmitting the information to Mr. Gable so as to keep him
informed.

C. P. Gillette: The green bug does some damage, especially to
oats, nearly every spring in the southeastern part of the State,
but we have had no complaints concerni-ig its injury during the
past summer, and I do not know of an infested field at the present
time.

Oscar C. Bartlett: The grain aphid seems to be a minus quantity
this winter so far. Our Tinter grains are showing nicely. We
have no reports so far of the grain aphis.

T. D!, Ur.bahns: The green bug, although it probably occurs in
small numbers durrinc the winter and spring months, is not conicdre.
to be of economic importance in the State.


GRASTHOPIE:S' (Acridiidae)


GETTER AL
STATEMENT


Texas and
Oklahoma












EASTERII STATES




Montana


W. L. 7EIIton: General conditiorrs as regards grasshopper in-
festation throughout the country were very favorable at the
close of the year 1925.

W. RP, Walton: The season was marked by the occurrence of t=o
regional outbreaks located in Lexas and Oklaehoma, respectively.
The prompt marshalling of State and 'Jd-erai force-, however,
and the interference of fortunate wreath.r conditions served to
repress these outbreaks and there is no present indication of
trouble there in the immediate future. An un-asual incident
related by Mr. C. H. Gable was a local outbreak of Schistoccr-"a
obscure a true "bird grasshopper", 30 miles south of San
Antonio, Tex. The. insect w-ere destroyed by spraying them with
a 1-to-SO solution of cattle dip while they were roosting in the
shrubbery. The spray burned the foliage but destroyed 85 per
cent of the hoppers.
W. R. Walton: Many sporadic cases of more or less serious injury
to crops by grasshoppers were reported from the Eastern States
during the course of the summer which was a dry onj in most of
that region.

Wa. R, Walton: A survey conducted in northern Montana during' the
fall indicates that a somewhat severe outbreak may bo expected
in Hill County of that State, and the State and Federal entomolo-
gists are planning to meet the em-rgsncy with a control c_,mTai-D
during the spring.








-lb-


SAN JOSE SaLjy (Aspidlotus rTrricio51.s Com~t. )


Connecticut












Rhode I land




IT?" York


. *E. Dritton: The San Jose scale is fc,-nd on nursery stock
during the annual ir 7_,c'Aion of nurF-sries, an! occasionally
small orchard trees are fund badly infested with it. It is
somewhat .-o-e prevalent than '-'as the case four or five :ears
ago, but has not increased to any such alarmirng extent as I
am led to believe is the case in Indiana and Illinois, and no
special treatfre.nt is required for its control. Our orchardists
spray either with a miscible oil or with lime-sulphur mixture,
but do not apply a dormant spray every se?2_on.. So flar as our
observation go, it has about the same status as it had a year
ago.

A. E. Stene: Our observations indicate that there are slightly
greater numbers of these insects in sote places but there is
no general st:tewide.increase. -7e have received no complaints
of damage from the scale from any section of the State,

C. I1. Crosby: In Columbia County the SIn Jose scale '-as present
in some orc.-> ris but was held in check by spraying. The scale
is found in many orchards in Dutchr.ss County but as a rule it
is.not serious. A fe1v orchards show a rather severe infestation
but these for the most part have been rrmore or less neglected
in the p.at. This insect h-s also been showing up on the fruit
in some orchards this autumn. The San Jose scle has been
quite well controlled by spraying, making it difficult to find
in Erie County. In some neglected orchards scales are found
on more than 50 oper cpnt of the fruit and on several of thd
limbs. Some scale injury ras found in many orcPrds. The
percentage thro-n out of A grade 'vould be ve:, srn-jll as the
injury is serious in only three of the commercial orc-hards. In
Monroe County the scale is present but only occasionally in
:-uious quantities, while in 'Tassau County it is present but
did not appear in larze nnmbers. In Cnondca.a County t'-., scale
was not serious in sprayed orchards, and coulk easily 7:e found
in uri, radycr orchards. Practically absent from all cr.:'rds in
Ontario County that have received the recorm.-xnded delayed
dormant lime-sulphur spray. Even many neglected o:ch.=rs are
almost free of this scale. Therefore the assistant advised
quite a nummbir of gocd growers to reduce the stror-nth of lime
sulphur in the delayed dormant spray to 1,40. This was only
advised, however, when the growers vw'-re familiar with the pest
and had made a thoroiih examination of the orchard or "-'hn the
assist-art had made such examination. In Orleans countyy the scale
is not common but a few can be found in some orchards. In
17a.-nc and 0,-'ego Counties the scale -"as only noted in quantity
in old neglected orchards. The young orchard found to be
severely infested last year showed no evidence of the pest this
,'-ir a t-cr a thorough application of 1-S lime-sulphur in the
delayed dormant the past two ceacons.

P. J. rParrott: The situation '"ith respect to the San Jose
scale is more favorable for the orchardists of this State than


































New Jersey


Pe nnsylvania









Virginia


it has bcon for several years In 193- i'iere e-ere marked evidences
that the insect ,as developng to dctr.uctivc numbers and threaten-
ing to become again a p-st of pri'ary importance, especially in
old aprle orhrl. Ho r, the cool, short surmm-er of 1923
had. the fct of redfci h -rbers cf th hibrn.rtig -,
and while e tihro ;,-a Isp.-ining of the insect in all of the
leadi-.g f ruit-gr 7- areas during 192?4-25, the scale, ..-n.rainly
speak-ing, caused very little spotting of aples during theco
season Th l deree of infestation et -rresent varies ,',ith
different orchards, but there are undoubtedly e.h of th in-ect
present in some plantings, at least, to make it inad-vi:ble foi
owners to take chances. _hr-efore past recommendations ior tne
control of the pest still hold lime sulphur at a dilutic- of
1-S being the preferred treatment. In case of badly infested old
apple orchards -,here the scale is now being held in checK satis-
factorily with lime-suilphur, lubricating miscible oil at the usual
dilutions is worthy of curious consideration.

E. P, Felt: The San Jose scale is not particularly numerous in
this tion of the State and so far as I have been able to learn
has not cau1:ed any serious damage.

Thomas J. Headlee: This insect is not sufficiently abundant in
this State to threaten injury,

T. L, Guyton: In the ic-;n'ral nursery inspection carried on F,
M. Trimble, Chief >arsery Inspector, it is reported that the San
Jose scale has not increased in any of the nursery plots of the
State, In reports from our field offices in Erie and Fr3nklin
Counties the-condition is verified as e:.pressed by our M,,r. Trimble.
In orchards which are sprayed regular!- there is little damage by
the scale, but in n::gleoctod orchards the scale is plentiful enough,
causing the ceath of some trees.

T;. J. Schoene: T.he San Jose scale has caused more loss to co-erci-
apple orchards daring the latter part of the sumr er of 185 tan
for many years. It seems that or-irl- to the o the insects
continued to multiply and to spread from the t-ig3- so that much
fruit w-hich v-oi.1ld otherwise h.ve been first class -as damaged
by the presence of the scales. It appears that ".-- insect oc-curred
all through the fruit sections.


]1orth Carolina Z. P. Metealf: Mr. C, H. Brannon, Assistant Extension- r, omolosist,
says that there are abcat the usual -;ber of the San Jose scale
in the orchards that he has examin-ei,

Georgia IIaliard De LaParelle: 7hile no definite survey has been made,
I em satisfied from observation that this insect has been and is
very prevalent and destructive in sections of the State '-hich I
have visited. I refer particularly to the peach district in the
vicinity of Macon, Ca. 'n some orchers the trees were so heavily
incrusted with this scale that the crop was seriously decreased and
the trees nearly killed.











Florida


Kentucky




::ic igan








Illinois




Wisconsin


R. A. 7'ni;>t: nhe San J.,se scale is cf ,.uiir co."imon occ,_rrence,
principally in the northern arts of thj SE .,

J S Fouse : O i ra .3 co-,rpl:-int is "e .... b' scms of the
orc: -dists in o.'.-,c n O1i 5. -.-.tic..... n .. e o nty
that the scale is `,ch cr-: t.-. it hU-: *C"-. o z', .:-.. C-, In
one in'ta.nc.s iev caro' ..:, of fruit .hi. to u .-or
eort wore v seusa and ,-i;-,ned to the b:'. b'-;":. th'3 fruit
,as in er:,t.:-'. 't is as- _f-..d that en-ir:.-ci -1 :;. a- -ell
as lime sulphur has failed to cc'.trol.

H. C --"-.': Th.e San Jose scale is one of ,c-:r :o:--cn :-, >t I
do not think that it is a7 u-!.lm.rit as fcr.-lZ:. r c-%.s to be
v- --r. large Ly cu-rjres-; on some tree-s *' -- .. ''-,no rt ercus s
p;.rasit :z

Re H. Petti: Th, 7e Jos ,cu-le is it.cl'" e'rc.'-here -here
fruit is g:oui but -e ..r hearing 1* e 'c it. T-o cr
three e:'s&F a o o-ur rro',ers had some difficult" irn co-t:.-ollir.- it
but at the pscsent t:.e the situation h's c. J 'o a. *,int
where only a -very e .'.' :,:Lries are rec,-iv-ed ecich .'/:' I m u-nable '
to state -,hether this is due to the goc "'orl: of n tur.rl enemies
or to scms other cause.

W. P. -lint; An examination of overriinterin- sc-le from o'the-n
and central Illinois indic" tt. that up t o thz ti' -..-n -:-.-s r3 D :- t
"'as -ritten, from 50 to 6C per cent of :e sEc:' 1 cr: bo'th a."ie ni
peach are alive.

S,, 3. :*.c*:r: Present in about ten cities a,-m, ": ''-^es c. t'
southeastern part of the Jt:'te. :Iot more tLh' C. '-. fa:" or-hardi
infestcld. A"'-le and plum trees occasion:ll-, :Li" .'. z:'": ot..r
economic damage. This insect U.. apgren :l" cee. .-* .. ,
persistent sprLayir- and destruction of i.-if,'ti Y'.--u ':; .t
La ross e, --'here it -;as dis-overed about I-'. L. CI:'-.:?-- t:n- S-n
Jo scale is not :l. -' ,n in the State norih ;:.'. .*: -f a li:-.c
drawn from Beloit through oisr t Cdar'-' .. .*.*- .
except for a fe,., infested tr:c:s and sirub' in th. ,i t f' c' c:gan.
The .-inter of i a 4 and i ..... the sc-le rrcwvv. lc ,-'t:-,,k
so that the i:.n.iry. in 1925 i the' infet 1, in.': ... ':. ,2.:
less than it had b.cen for two prev-icu!7 ..on-.

C. L 71uke: '",; have not made any couns t"-.. n J:o -cale.
It occurs, of cour', through certain T ........ -rt
of Wi-:o:.din, but I "l iieve is not <=-- n"re r''.,:,'cus t"--in uul.

A. G. .u-'--es: The. San J,..:.- scale i : i-tro-u>-;.d ya n,-.r r ser.,,-:.n
throi:,-h di-,t'-ibution of sorrc :;.-, York nu'r :- .ry to;<. V7o ":- e
followed :-j ill .f tho- -:me-ts and 1-.'c-c 71 f .. .'.
w7ith the scale oin have pc';-. no Cn J. -.: c- o.'.i -
of those few isolated c- '-.


"i:
L" -,-Ota










SIowa


Missouri



Arkansas




South Dakota



Kansas





Colorado


Idaho


Carl J. Drake: The San Jose scale is found only in southeastern
Iowa and almost all of the Iora nurseries are located outside of
the San Jose scale region. Some commercial damage is being done
by this insect in the southeastern portion of the State,

L. Haseman:' The situation is entirely satisfactory but must be
followed carefully as the 'est is undoubtedly recovering again
from its setback of the last two years.

Dwight Isely: The San Jose scale is fairly well under control in
northwestern Arkansas. The scale is present in practically all
orchards, but not in unusual numbers and at present is causing
no. alarm.

H. C. Severin: The San Jose scale, so fab as we know, is not
found in South Dakota. It was introduced on several different
occasions but in each case eradicated,

H. B. Hungerford: The San Jose scale is coming well unler control
in Kansas. The Entomological Commission has e en given some
financial support and by the means of this has carried on ft:vey
and control work at least sufficient to protect the nurseries
and commercial orchards in the southern half of the State.

C. P. Gillette: The San Jose scale is present in small numbers
in a few orchards in Mesa County, and, so far as I can determine
at the present time, does not occur in any other section of the
State. How-ever, there has been a small infestation in Delta
County that Mr. Newton has been endeavoring to control for a few
years. This past summer he hat not been able to find a single
specimen to indicate the presence of the scale, though it is
probable that it iWill turn up again in the future.

Claude Wskeland (Annual Report 1925): The fact of greatest economic
imprnortance concerning the San Jose scale in Idaho during the past
season is that in many sections of the State it was entirely con-
tro]lled by the unusually extreme temperatures of last December and
that many orchardists dispensed completely with the usual dormant
spray. The Experiment Station made many examinations for fruit
growers, horticultural inspectors, and others interested to deter-
mine the effect of the cold and as a result of this work many
thousands of dollars were saved Yhat would ordinarily have beem
expended for spraying. It is considered unsafe to dispense with the
usual dormant spray under ordinary conditions even though the
infestation is light,but the entomologist took the position in this
case that where natural conditions had already controlled the
insect to a greater degree tha rood spraying will under average
conditions, it was probable that the cost of spraying would be much
greater in many instances than the benefit derived.
Scale-infested branches and tiigs v, ere collected by the entomologist
or sent in to him by farmers or inspectors from all of the chief
fruit growing areas of southern Idaho. These were carefully examined
under the binocular and each individual scale turned over with a










needle to determine whether it ras alive or deId. Only partially
mature ins-ects were included in the r'cor-ds ke.t of each exemina-
tion. A total of 90 examinations 7-ere made whlch :-ielded the
following data:
Total scales counted ................................ 4O 0 5
Total scales dead ............ ...................... 39,625
Per cent of scales alive ............................ 3.00
Total scales alive above sno- line ................. 229
Percentage of scales alive above snot line ......... 0.51
Total scales alive below snow line ................. 999
Percentage of scales alive below snow line ......... 2.49
Of all the insects examined, only 0.51 per cent were alive that
occurred above the sno17 line of the previous winter and the scales
that mrnve this percentage in the entire count cerw from but a very
few orchards in certain districts "-here the temnre-ature h-d been
less extreme than in most com.muinities. The -rotection that the
snow affords is evidenced by the fact that the average of 2,'49
per cent -as obtained by the excniT.Ltion of o n!"y z-:',en t-i.rs that
had been below snow line. On these twi.gs 5355 'c.e insects -ore
e::namird of -hich 1_39 were alive. Thus of all t'.e 2cales examined
on wood which had been covered with snow, 4L2.'3, er cen.; -ere
found to have survived the -'inter, '7ere it rot thfit th-'re ere
often trees that have been blo-nm over or that hr.ve br:.nches hanging
down, or for water cp'ccuts at the bascs of tri 3 ,.ici ofte-'n )re
infested with the San Jose scale, natn-ral cot-ol inL lurge areas
of southern Ia'hno -;oufi. ?ve3 been complete. -:.-.?r. are localities
in -hich t.he increa,_e of scale will be very slo" for a tirnmc and
doubtless it ,ill be safe to omit the do.-nInt spray, in some orchards
again in 1926 if examination shows that the orcW". rs have not -e-
corrm reinfested. Considerable inforn.-ation -ca ob- alnei concerning
the tenmperature which is fatal to the San Jose oc'l ir t-his
State. Records thot that where the tcm-xc,'jure r:-c'ed a minimum
of 26 degrees belo-7 zero there ,-ere, with one enortion, no
rc.ale survival. All live insects were obtain-, from cc-r'runities
where the minimum temprature was warmer thar. -26 a few were
found alive at -24 decrees Po (January 12): I have tlk:ed -ith
dvmcorou St a te horticultural inspectors recently .nd it is quite
Se:vidnt that ,e can expect little injury from this inict in 1926.
It was unly in a few restricted districts that s:-Lle-rrked apples
re fcz-! at harvest tirn in 19?3 rnd with one e:=Nticn, these
districts were thoze in which a small percenta-e of scl-3s were
found to be alive b, microscopic examinations 0ol!c-.-.rg t+1e cold
wcat..er of l1--t winter, Tie-e are whole are-s in -h'.ch no scales
affect A the fruit during the pa t season and it ioo^-:s to me
that we will have little injury in those dizrict. in 1,L. It is
true that there has been a holdover of live in-ects on --illor's
and on ,'.at. sr routa that were belewv the snow li bIt sr.-re.ad from
trese sources has not -et reinf'fsted the fait'rroc aras of trees
ar.d it ?ppears that control will n-t be practiced exreptir.. i:n those
districts meint ior.ed.

Ari7oe i OCsc-, C. 3-.rtlett: Ab- San Jose .-:.le is now pretty ',ell spread
o,'"c.- this St.te w-h.-rejver fruit trees S-re grci-ing









Nevada


California


George G. Schweis: The only insect that has become thoroughly
established in this State is the San Jose scale. This insect
seems to have a wide distribution, ..and without doubt covers
the entire State wherever deciduous trees are rc-mn. A survey
has not been made in the southern portion of the State recently,
but we are inclined to believe that it exists there also.

To D. Urbahrns: i-The San Joule scale has a general distribution
in practically all of the orchard districts of California, but
is held in check in good condition in commercial orchards with
a regular system of orchard spraying. Ir sometimes becor.s
quite destructive in neglected orchards or trees in back yards,
c.nd if le uncontrolled in commercial orchards would probably
take the orchard in the course of a fe- years.


BOLL .7EVIL (Anthonom.us Prandis Boh.)


Virginia


W& J. Schoene: I personally made a scouting trip for the
boll weevils on the 25th and 2Cth of September, and I am giving
you that data herewith, In comp.ny vith Ir. .Underhill, I scouted
the territory from Richmond to E:n:o:'ia south, and from Lawience-
tille through Drev.ryvi lle Franklin, and Suffolk. The insect
was readily found in cotton fields ten miles north of :m:.oria.
Also either the insect itself or evidence of the w-ork was found
in practically every field visited from Larrenceville to Suffolk.
Owing to the prolonged dry weather, many of the fields of cotton
had fully matured, and in some the cotton had been picked 'e fore
the dates mentioned. The plants in such fields were thoroughly
dry and no weevils present, but rhercVf' there happened to be
a green plant the insects were readily found, though in Em-ll
numbers; and no evidence of any injury was noticed except near
Franklin and Suffolk. In this region the insect was present in
all stages though not so numerous as noted at Suffolk in 1923,


North Carolina Z, P. Metcalf: Mr. W, Bruce Mabec, Eytension Entomologist, advises
me that less than the usual number of cotton boll reevils went
into hibernation, and that they went into hibernation earlier
than usual this year. It is natural to expect, therefore, that
fewer will survive the winter than in the average season.


Missouri



Arkansas






Louisiana


L. Hasoman: To my !ho-ledge no -eevil appeared in southeastern
Missouri last summer. No corrmnlaints of it were received and
no samples, though a few year-. ago rie had a fair sprinkling.

Dwight Isely: Injury by the cotton boll -eevil was relatively
light -hen compared with that of l925. Ho-ever, it ras much
more general than in 1924". Late in the se;uson weevils could
be found in all parts of the cotton belt in large nur-.bors, and
the number which went into hibernation was several times great) er
than in the fall of 1924.

W, E. Hinds: Boll weevils werc scarce ;-en rally through the
past sumrrer in the northern half of the t--te and in the eastern
section. They develo-ed abundantly in such fields as were not
strip-ed by the cotton worms, during. SeptembEr and October. The






-22-


occurrence of weevils at tir. of killing frot rwas decidedly-
irregular or spotted. Where thcy wrer present in c.ny considerable
numbers, they w-ere likely to to decidedly abundant and in other
localities very scarce,
At Baton Rouge re found -e',.vilz far more abundant and easily
obtained for our hibernation c.-we -or': than duwirz the fall of
1924. I believe that through the 5.tate as a -rhole more w-eevils
are in hibernation at this tirn.- than exi:-t3d a y.--ar acgo.
iir ,.iimum w-inter temperatures for this yer are Lone 10 degrees
below those of 1924 to 1325, but in no section ex:apt possibly
the extreme northern portion has the temper-ture been low enough
to destroy sny unusual proportion of overrintering weevils thus
far.
Killing. frosts occur-ed in central Louisiana r-bout .To-'ember 20,
enabling boll w-e'ils to enter hibernction -.omrrpl .ely after that
time. Limited ex:anin.-itions of Sp.tnish moss iniic-"ted t'>;t there
is a hieh initial population in such shelter this sea.son.

B. R, Coad: To some it ry, seem early, to start considering boll
weevil orozpects for l126, but in reality '-e -*Ireae' h'.ve &
v-ery important index to -hat m?,y be er-pected. Eler,-one knows,
of course, that the rate of survival throur. the -inter is very
definitely determined by the winter weather, but at the sar-e
time, it u'hould also be remembered that the number of w'eevils
actually entering hibernation in the fill is arob'ably of almost
equal importance, There serms to be a r:ither eno.r .1 iiea that
o'7ing to th3 lifht evill &Trapme +o the cotton crop of 192a'
there 7'ould '-e only a srmll nur.ber of ".evils in hibernation at
the present time. Irn rzt ye-rs third e,-+tlcn h-u. bf course
devoted gre-atest attention '.o the eTrl' spring ex'min-nLtions for
the r-Irrose of deter-mining w.e-vils --hich have survived the
'inte-, but in some prist seasons f-.ll records of w';-7ils entering
hibprnatio.n have been made. Recent observations indicate the
prept imoorta.nce of these fall records, These have been concen-
tratcd. around T-llulah, Louisiana, Kin m5e cn a series of
'-bout fifteen plantations -'ithin r-diuc of thirty miles of
Talluln.h, Table Numr r i sunma-rires the-se records for past years
as far as they nre kiril'ble.

Table :To. 1
R2OD',DS FOR PAST YEI S CU ".: :'ILS EBrTERIT!- HIBER-
Ia'TiC:I fT TALLULAH, LA.

Live '7e; evils -por
Ytor Tc-, of .M.:0. ___ __
___ 91^5________ ^ ____-__-__________
193__I. 6___ __ ______________ VJ_____________________________
-- _~ ____ ~ ~ ~"_ 22 a '~~
______]_Q_____________ _________1l6______________________
I 7T
Y,17 5_.
!q2] :2nr
1924 1


From this it rill boe noted that in more or loss normal years from
13C to 200 we.vils prr ton of mosr: seem to reresse.nt an average








_25-


popui"Jtion going into hiberaation in the fall. 1i:eteen :*u-:ir-:d
and fifteen sho,'r an cbinorma.lly heavy populati-c; while 1924
s.c'ed a phsncnerally light one, and this -7s, of cour -, follo.-Ld
by the light em,-rg -nce in the spring of 1025.
This fall the Department of Agriculture has started a more extensive
series, bringing in other localities, in cooperation '-ith the State
agricultuiTryl r-orkers in the various districts. It is planned to
extend and continue this in future years, but the observations
this season h-a-e included the following points:

T"-llulah La, 7 -rshington IN. C.
Crew Lake, La, Florence, S. C.
Le Providence, La ."... Corner, S.C.
Opelousas, La H.-mberg, S, CI
inton Lan Valdoste, C-a.
Lafayet. te, La. Bainbridge, CGa.
Fairbluff, C, Donaldsonville, Ga.

The examinations at these are summarized in Table Nuamber 2.

Table ITo. 2

72:VIhLS 7ZT'EPTj--- m IERITTICT A.T VARIOUS
FCIi'7 S IN FALL OF q25r

Live Weevils per
Locality T on of Moss

TalTulah La____,,a._____ 20 __
Average northern Louisiana :330
A'-erage southern Louisiana irl g1551_
Aver- re ITorth Carolina_ 430
Average South Carolina '. 2
Average Georgia 39______

The Tallulah.record is, of course, of primary interest as being
directly comparable -ith those available in past years. It will
be noted that it is higher than every year but one in the past
here records are available and that it is decidedly above w-lat
might be called a normal average population based on the past
records. This is further borne out by the average of all records
made in northern Louisiana: 7hile southern Louisiana sho-s an
enormously he vy population. North Carolina similarly shows
many weevils in hibernation, while the number is much lighter
at the South Carolina and Georgia points examined. These figures
do not mean, of course, that any such numbers of weevils are
goinr to survive the winter, but they do give our first index of
the we-.r/ils vtich may be available for infestation next spring.
Certainly, there seems no ground for the belief that the light
dr-mage this past season was followed by a very li>-t'movement
of weevils into hibernation. Throughout much of the territory,
conditions in the fall were fairly favorable for -eevil breeding





UNIVERSITY OF FLORIDA
iIII II III IIII II II IIII 111 IN 1111 l n111111
3 1262 09244 5575




aft.r -l. crop has bctn'm 'r, Final Till.-a,- frosts -'rc ,cnurally
-- ?ctivcdy late and '. :=m.boccrs of cvi"ls -re br: during
S ...i-'T to rnter 1 r1 'maion. In '. Car--i.. .. cr-ia
pract-cicly ell points xmincd lotc. i. -'-.c t of
co,--.n- tivolQy 14, r- :cil where the o'_ rn c mt-re.;. early
.. did not av this hc,r- second -- n.31T... i.ort}h- C'-rlina
thero T-as. a .z.vy second --r .o- '.h '".r-.d iJ:- -1 cc.-d itir:ns for large
r' ris of -0cevils to brrecd ani ent er hi:,_rr.Lior.
T:.i s iificanc. of the f.:--'-oin-, as f:- a t-, cotton
farrnmer is conce:rncd, is '1.; fact that in spit. of t- hir.}: degrco
of clirmatic control of thI v-eevils .irir.- t'.'>; '.'c.t to ye-rs,
t:.'" finally, succeeded in enter ". hibernation: i ".t le-n..5I
no.:210 il jnnL:..c i_ riuch of tlnu Cotton :: t 4-i f:-ll -o that
'it is again a ouestiocn of 1-inter ts:mr,.?"-..tr- fc'.lo 'ed ".' summer
climaic conditontons -hich 1'ill dotJ, i..e r...- to the :ro.
ne::t yrer. in eter -'ords, as far ,s "-:'::. -:i: .s indicate,
t., e is absolutely no re-asn f.: the frmers to bc.elieve that
t>:. com:Lrntive imnunnity'of n- ast tv'o yc'-- ""il e oorntinucd
nfxt sea son.

C'-c-,. C. P:-'tlett: -'. cotton boll -'eevil a-p,-.rer in t-o
fields of cotton .t Gonti-'.nt.l..1, rz., k"hich i. aut 30 miles
Sout .of'-con. 'T -re 7ere t' small i-"estc:. ns of it, each
one less than onc--/_lf, ac-f u in ext.-:t. The irLf t'ti An not
severe. This infestation '-'as c-u.s- 'by the sc-called i7ild
boll -eevil or r'.ir.beri weevil. t -;.e into do.r.estic fields
from -ild cotton rvl.-.ts.