News letter

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Title:
News letter
Alternate title:
Newsletter
Physical Description:
9 v. : ; 28 cm.
Language:
English
Creator:
United States -- Bureau of Entomology and Plant Quarantine
United States -- Bureau of Entomology and Plant Quarantine
Publisher:
Bureau of Entomology and Plant Quarantine
Place of Publication:
Washington, D.C.
Publication Date:
Frequency:
monthly
regular

Subjects

Subjects / Keywords:
Entomology -- Periodicals   ( lcsh )
Beneficial insects -- Periodicals -- United States   ( lcsh )
Plant diseases -- Periodicals -- United States   ( lcsh )
Beneficial insects   ( fast )
Entomology   ( fast )
Plant diseases   ( fast )
United States   ( fast )
Genre:
Periodicals   ( fast )
Periodicals.   ( fast )
serial   ( sobekcm )
federal government publication   ( marcgt )
periodical   ( marcgt )

Notes

Dates or Sequential Designation:
Vol. 1 (June 1934)-
Dates or Sequential Designation:
Ceased publication with v. 9, no. 4, (Feb. 1942).

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
oclc - 86116125
lccn - 2012229622
ocm86116125
System ID:
AA00023227:00001

Related Items

Preceded by:
News letter
Preceded by:
Monthly letter of the Bureau of Entomology
Preceded by:
Blister rust news

Full Text


717ITED STATES DEPART

T
37MEA-17 OF E:T: _':,'CLC73Y A:,D PLL71 2U !T.E7E

N Z W S L EZ T -7 E R

FOR 1TOVE: jM7 R 193c


Vol. IV, No. 1 (INot, for publication)



FRT1.7IT T11SECT INVESTIGATIO'Ns


S'n ,de-cioth protection Of drYin[7, "nSimmons, of the Fresno, Calif., &ri ?d-fruit in'_(- ct experimental 11.ryin of pea-rs on protected exclusi-r- of the raisin 7 ,oth. Pears covered wit'-_ clot' -i
ing on staahce" trp.ys :ari:-:- tem-ocrary st- -- i- bo, C
infested onl,: 1 p-rce-nt. 7xpos-are of th, -17'r s'ac:: dr-YiSultee. in -ion of 27 t_- not pr
any tLne (t', e b c' ."C 1 :7 c r
corrcspon witil t os 'necL 1Q-, 2-yi-_ unicr clotl-. -,o:L _;." _cleecner fruit, of" bc,,tt(!r color text-_-re.

raF- i t i za t i oi o Jz 7 i p"
7
At th,, cr. str=, iT. J. 1, 0-f T i v 0:: an i.-J"-"'- :-f
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iln oit'_-er .-f 'L"-,---se St,-,tes. Ao-)roximatel-,I 100 : e-_, are e-.-r-lo-ed L1
eac_-_ Sta*.e have over 70-OsCOO vrorthloss trees in Mississip-pi
o,:nr 1 000,0 ) Alab,Emia. Inspection an er,?Z.ication is also c3rtinued
all areas in Loaisiana in v hich cit'r-',s is fou11d,
allotme-nt h s been ,Deac-i funds er
r, 'v 2 ."c,7- Fu:lcl
_e_ ror', emerg6- _S SUIlicic-i-.t to continue eradicatiDr activities i--. all F_":ccted States durin ; Dece .-.Iber ai-_3. J --_:-Iu!: Iry. Lraring -Che li-fe of
fro- Au -uczt 10:3; to t'-'-)e close of Oct-ber 1936, over 49 U-1 peach trees ha -e bee,-, remove fro:i, 11 infected States. In Lo-_-.-- iana the of re-moving approxii-r atel--,' 51000 diseased trees is
-i -npleted -1-7 the mi _dle of Decermber.

i s.s i s f i)pp i re-visec -phon-T -peach disea2f cv L2ant ine. --Hand culling g of pe a c _-_ bon r infest 1.
ed trees is no lon,(-er a con-ition under v:hic'n peaea andnectarine nurserz, stoic maI be certified! fcr entr-,,- into 17 counties in
under a, revisi-)n of the -ohony 'peach fl'isease Tiarantine of that Sta.e, .-. _,-ich bec 7,me effective on October 4. L"Llese counties v;ere recently establiz--led ac an eraO.ication area in the campaign a-ainst the disease in that and -c host trees ma-- be shil)-ped into these counties unless
t 1je 71 h 7.re been -o.rcduce ._ in a county in vinich t'-Ie disease has not been found or in a nursery, the environs of 17,hich hnve been inspected and no such dic-o, sa I'Dun," : ith in a. mile t1loraof. N-arser.- stock from :ihich Ieach borer
trees ha7e been remove may be shiD-,.-)ed to points in Mississippi outsi-_Ie t'l-io era.!.icatio-_.-. a---ea.

J. Kelly transit inseqti Dr, ,Dost.--I,.ich,-.el J. Kelly, of
t'rle Ja--)anr-,sc,, beetle inspection force, has be6n -,)laced in char-o oj" transit ins,'Dectic-ri activities in tne Nortlieas tern St tos, w8ith headquarters at New Y+I rI_- C i ty. 14r. Kelly h, s had several ye; ,rs I experience in the Department.

"Laundryll la! Iel used on rust -ic-Ged T lant m- toril-,Is.--Uncertificd hen*.-an ,, laurel wreaths shii)-r)e.^l in a c-rton bearing the declan-tion of
movin. b-,,- express frI-Im the gy--sy nioth infested area in Illassachusct"'Is 'U-, a point in Kentucl:jj recently intercepted by transit inspect-;rs at Cincinnati. 7ne siCnature of the who was obviously
at',(;m-)tin.-,- to e.vadp either the classificati-,n rates or the quarantine regu1; ).tirns) v.,as illegible; however his identity can be detennine(ft from the
c ,, d C! r c" s P .

I.*cy-Lcrol fruit -:orm ciuarrtntine reg alati-ns revi! ,ed.--Reg elation 7 of the
c -n fi-j+it worm :!as revised effective Novowbor 1.6, providing
v r.;Ar 'L ,,r the Chief of th 3 to mahe sucli moclificatil)ns as may be
-i,s to the duration of VIC period durinZ, which no host to Jcvolop in ,,,rovos or exist in the rc 7ilatcd area. rM _T'1 11nOf."(-, ,- f "no is to facilit-ate the prompt moAlification of the in tho event a frizit-fly in'cztati, ,,n should be found.





















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interval 'et7een oviposition and emergence of the ad1t was found to be
-.L irs at a constant temperature of 80 F. and a constant R. H. of 70 percent. Emergence of host adults and parasite adults started at the same time and the emergence curves of each were closely parallel. A loss of parasites w as experienced somewhere between the time when the parasite larvae -ere in the earl instars and the time of adult emergence, since, following a hatch of over 75 percent of the host eggs, dissect ions of smallo st larvae showed a fairly high percentage of parasitization, altouh s -seouent parasite production was low. Although sufficient time
hna-s o-t elapsed to produce adult offspring from parents reared from E.
nuehinella, dissections of host larvae show that females from this source are capable of producing viable eggs. Adults reared on flour moth larvae are shorter than normal for the species (6-7 mm, as given by Thomson), averaing about 4 m. Attempts to obtain parasitization by Chelonus in the eggs of Sitotroga cerealella Oliv. were unsuccessful. Parasite females, actively ovipositing in eggs of E. kuehniella, showed no interest in grain moth eggs when these were substituted for those of the flour moth."

field-corn resistance to European corn borer.--L.LH. Patch and G. T. Bottger, Toledo, report on the comparative results with ifnbred strains tested in 1935 and 1936: Of 136 inbreds tested in 1935, 17 had percentages of borer survial lower than was expected on the basis of the trend with date of tassel>:. Of the 17 inbreds, 15 were tested in 1936. In addition, six inbreds having high borer survival in 1935 and seven having intermediate survival were also tested. These additional 13 inbreds served as standards for comparison with the 15 inbreds thought to have some resistance to the borer. The percentages of borer survival in 1935 and 1936 are as follows:

: Borer survival
Inbreds 1935 j j6
: 1935 : 193
Percent Percent
Six with high survival in 1935----------: 13.4 : 8.9
Seven with intermedi-te survival in 1935: 7.9 : 8.3
Fifteen with low survival in 1935------- 6.1 : 7.5

It mry be noted that the r-,nge in the percentage of borer survival ir 1935 was from 6.1 to 13.4, whereas in 1936 the range was from 7.5 to
9.9. The rretly decreased ran;e in 193> compared with 1935, was chiefly du to the date the plants became infested, with relation to the date of tasseling. In 1935 the eggs hatched on July 28, when many of the strains were tassoline. In 1936 the plants were infested on July 13, several days before -ny of the inbreds tasseled. Of the 15 inbreds with a low borer surv-ival in 193, 6 were relatively low in 1936, as shown below.




UNIVERSITY OF FLORIDA

3 1262 09243 4785


s c, vc r of a s )oecies of-Cic-lellifac.--l S-?,: cimen) in excel nt 17 P. V'. Cinar, es 'Te6co-o-li"ia '-a r, c; t t i 3- k r wa s f f om -rOWnsv le,in- ,,,,-nr na c r at 3- e: on o v mn t r by
Si_,_,lct: n, cf t'_-_ liv-sicn of Fcroi,= C uaranti, es. A 1U1,1011j"n
Acq -:0 speci--- 110
in 199S from 'i -i c ns ) v1ni ch a no in ta-pnenrs to be t, e first auth, ntic collec'Ir.- recorcC 4 e description .

ct nc,-,, from -port interccpti oils. --Four species of
ern-hn m,! n 10 P. 1., asoii as P.-)p rcntly re-oresc_ :_'i n7 new s-neci.es ol t1iL hav been rec, Ivc-1 f o r d e t e rT, i i n a t i c --, i vi i t'-, a t c r in 1
D4 v i s i 01-1 -.,1 J n the past sumb y t h;- of Forsi ;r Pl-41 es :urir,-,
e s re --L saxif raL e ) 3,ne o-,, 1 o t t c e a n o n e o c c,,,, r i -n available rccor .s, species of Kalcimia usu,-lly live on
1-7 "c6ae. Lott-ace an-C! Scrnr crvivum i-n the above c, isc)s probably
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BtMAU OF
Uff OMOLOGY AIND PLANT QUARANTINE

NEWS LETTER






vol'I'ME, R,






-20


Cot--,n are fo-a-nd", ir scme of 1-uc--s --1: r":1e-r i-nCi at s "at 1.he roadwle -1 r %-c-_Z.
on 2-s-oectors are e- ic4--t iTii77K 111 ]Rop AIM I.11SE""T I1MESTIGkT1C:1S

C: :.Sts :'-ive -pro-nise ill cclfttrol of A. 3rindley,
ida'-o,, la'cor- ,o-r, lar- -scalc.
re-ports 'U- at as a result o-L Z10 t S -, _" : __ L t"-P. 10.3o season, dust mixtures containl-_a, ,- 1.0 or O.F per1- C' 71 '- fJnely Srov-nd c4ato- ceo-as tobacco a'ust, or
,d e 'ed --chus Lls,-rur-,ic e le 11 ation 7oy 13 .,- L. more. than
on an avera ---e La E_'ree-_-1 -oeas 1-larvested :Zor and in dry
h'a_12-:ested for seed or -Drocessing, -as corapareO to the pea weevil infesLatio.-. Lli u-11troated. -!-)lot-,,. Th e s e du s t mi.-tures gave results superior to
J_ 4Lreatments VTit7' undiluted cr .-olitej calciam-a.rse-- ,ia'L e-sul iau, (1-F), or
,ris (1-5)- Five treaty ,cnts i-.rore -,pl)lied to these experimental
plo's at a osa.."e of 20 pounds per acre per a )- V7 I e e
)licati cn2 i t'- t h xce _' tion
o t.-Ic -.olot treated wifn the dust mixn:re containing 0. ; percent rotanone i --q Ja+-,- .ceous earth, which received LIO poun, s rer acre -9 e r a p-. 1 i c -t i o n.
plot s on a- averz &,-e ap proxir;-'a tc ly 43 percelat of the peas Uiu '_;ated L,
Tere in]cezte6. by t1,-e pea weevil.

TDC E'S ure, te:' with de-ris show no derris constit-aents.--In ex7ior in derris has bcen used for corribatin Z the ,-,ea a] aid,
'-,ias arisen re,-1ardi.r1,- 'he possible conte.nai-natiola of canned
peas Lro,-,- plants treated wit1i this insecticide. In ordur to obtain data on t'-is problem, R. A. Fulton, of the, Columlous, OL-Lio, laboratory, recently anp.lyze a canned peas that haC. been treated by sorayi n,,
Cer -ir, at t1'le dilutions found to be effective in t 1, -_ e control of Illinoia Kalt. 71 ic can-ned peas viere subjected to c'iemical treatments to remove any tr,. .cec of the active ingredients of derris contained therein. The resultin,-- wo ,,).ct was t'-ler. tested for the presence of rot-;.nonc or other dorris dr:. rivativcs throu,,,'.-i the medi m of the gold-fish method -.),nd also by colorimctric In six anall7ses no trace of dcri'is constituents could be
dctectcd in aror of the t'_-iat 11ad been -.E moved from treated plants.

7'iC(-ti r C, P, at ineffective -. against c. ,'C 1TO]M11S.--C. E. Smita, of
the Drlt on L r 1 ,borntory, rej)orts th ,'U in field experiments to obt.- Jn drt,:), on pos! iblc value o,-"' nicotine port moss dust in controlling
corriion sijccics oi cabbage woa7ms, including,,! pri-_,-icipally the cabbage le)np, r (A Lto r p.,a, brassicae,, Riley --io imiportea cnbbai e t4orm (Ascia raT)- t1lis M'-- t eri ,,l proved], to 'be i stinctly inf crior tr. derri s dust
co-.'it.-.inin;' 1.0 0.5 per ent rotenone, respectively, and also infcri.,,r to spc really unr.iluted calcium -1-runate.

othor offcct"yo ';yireworms 7ill not
V"'. Stone' Of Cie Calif.,
'..Iat in prelimin, ,ry expc, riments to dotcrmino tho effect ")f et''u.,r on "'Lima beans, it was
f( !- I -tcrjal '-"t ronc("ntr"'tiorls of 11 3, and 6 cc respectively
1), 'n --t th r:- ,tc o f 100, 200, : nd 30, respective-'rown in ( -incli flo%-.,(,r potT, did not rt-it-rd il









overti-e on or-'ers for cuL rbin, for mAnymles of Eside7walkcs being built along
S:'te i~w~s.Ineasd. uiling~eivitic li-ve created dee.a:nd's for more 17.a-_. Lumber shaiurentz tied up by thl~ Ftri'ke on- the 1 est coast h-vG also C_1 e additional outlets for :lew Englandi umbor. The de__7nds for nursery
S s :s fall ha,,ve exceed those of scicral past fall-shippin- seasons.
:ae-e is no-,, o-ite an utlct 'or trees for Statea-high.-7a-- land ca-in. 171e,.
n :e:u ureresthat custom-.rily dig deciduous stock- 'or m-inter storage, to h_--ve 1t in readiness for- eari spring shipments, c-re olficing more stock than er I.n seo rage this fall. Extra inspectors av been require. o x
naming thP stc 7o,-p moth- infestfetion lorior to storage.

loriCa-bound plants and soil surrendered. at roc post. --Among- the trucks se"o-,-Dped by, the3 road., inspectorL on th hf ro iUihtt .
on :Tov7ber 19 wo one cove red .-rith a tapui-nd containing a horc-e. In
res~ns o the inspector's usual query, the d.rivc-r sta ted tha.,t he had no pla-nt mterial on his loa2. 17hile examn'ininz the rear of the truck to confi th r~ver's stetement, the inspector saw some gr-en foliege protrudin trohaa hole that the horse had kcickied in a hoegshe-ad in tho truck.
~ie ths ws bou~t t ne drie' attention hie admitted thpat he had on 50,000 g~~ruc~omtointo and. pepper plants th-a he was taking- from
So~eiki~-,Pa., to Deer-fieldf, Fla. for planting. The temperature w~as belo-.' freezin-- at the time, but the driver claimed that the h-eat from the horse icept the plants from f"reezinC. Rather than return to the Irea for pr-oper isctenor wait until the follo-7ing morning' -for inspection at the post the driv(e:r surrendered. the plants at thie road station. His anxiety to s-urrend~er them was -nrobably due to the fact that he did not expect to be cr -t transport in,,: uncertified plants. Imm,.eliately upon their removal froi.m t-_ track_- t'he plants froze. Examination of the large amount of soil accoanman:-ini7 the plants failed to reveal any Japanese beetle larvae.

Chc.mic;Pl treatments d~iscontinued in Detroit and Chip o. --Free zi:4" weath, er 7hls forced. disco-ntinuaance of soil tremnoof sections infested
-oaa,- Tretin v.,rk n Chcag
witn, th Ja- neFe beetle in Detroit and Chicao ~e~n oki hcg
1.7as5o-e on Auguact 2)-, and continued until November 16. During that time soil on 105.2 acres was treated. In Detroit, 48.2 acres was treated while thlis ,orkias in progress from October 1" to November 6.Veny little wo0rk wa s oc-ible in either city in November, as rain and lo,. tempera tures hampcred-3 the ,.ork. Treatments will be resumed in both of these cities as
eer' c ossible next spring. The onlil assistance rern'dered to thle States byr t_,e Div-1i-on of Ja-ranese Be-etle Control in these treating programs consirsted. of fvrnishing spray outfits, spray,7 truck operators, anOd supervisors.

BailyaExnress driv .rs require quaxrantinc instraction.--A recent
c'.7an,-e in the method of billing express shipments in 3oston has necessitated the inst.-' etion of from 200 to 300 trucks driv+_rs in qus-rantine certification
reqaireAC s. nti I receatl- :l1 shipincnts v~ebrov..ght into the receiving plrinn m'vwre bi led( thro-vi the loc ,l office. This method has no,.- boen
che ac- ,n(. -,oh driver is Permit ted to receive a shipment and bill it
tore h in~ct to the cr.inecollection eigma,1e fro:'.. the consil-nee..
This rcie thatt qu'ar: atine information be s-U-)oliEd to each truck
dCirv .r, 'Kr shoretofore one- m-an at the receiving;) platform was in a position
to CA Iei ~icr: ti leAs~iprwnsofl quiantie&. )-roOucts.
















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uCr e 1 e__ ___,Ca 2
S. 7mitirit?-- 1* 1,Z 7. 2
H. f _----73
S-Pathiu~s zfK:s3Aw--- D71 .

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7T c, r vsz o; I fv< o
o 0C co';i-1 Cfr ~C ;oc1, u 1r cc2 > :.
tiit f. .: 12 i t.e larval st-> or c&td '> :.muat5 <.ri leo) sO fc 2 ro 7

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-'le-,, to t__'-.e *,,in ow' 33 111CI-10S of sustai-ne f li '-Ilt. One femole was observed '710 he-- 10 times at co') an -, cl befoi-e she
1 -1 7cen an
11v 3 inc' es. Sju-o -, --- of -_nz7 -!as Le: or,- I bc t 60 d 31
'Cu' 0:-I'L7- 1 7 Ve flC',-f n 1 inut e s f Our fl' onl- 3 to incl es. Bet% "een
1 1) L' ZD I
r, /_ 2 Lri 11 manutec, six flow) ono 7' i-7c'hos,
edazonallir to the windo-. 'I'l-io o -or s fran 3 1 o 9 i:ache s The rel:- 'ivo humidity in the room was L9 n e :- c t t;h e a i r : wa s s t i 11. Observe: tions _,ere m,-do in the field on f,_ malos occurring r-itur,7111Y on a plot of com.on vetch on
-fto_--oons of 1 ovefhber 24 and 25- The the---iomet, r vas sus- )encled o---- a
lp,-el -.,,iti t'.-.,c v ;tch-plant tiPZ, 3 incI-ies bovo the j round. Altes on
ti.)s 1:T'-',re -.atched for 45 minutes o--,. Xove .- bor 24. Tlaree ',-iero observed ly one twice) f rom 2 to inc.1, cs f ro.-,,i 'I e tip of one pln nt to
"ric *--ip of or clo!.7n to tho. lovi r ,-,r' o-L L st e -0 -1 1' Uem Ter;, por ,tures
rnnF Alates were observee.- to spread brings sever,-tl times
e,-7 fro--i 65L' to 630
be -;"o r _Iat Thcv seemed to be deterred bv the iii'e U rmit4-ent breezes and
act -1 occurred. only in quiet :)oriod 7. Ila
UU - grn nn-: lum'I[Iby.
the parasite AjjhicLu- ,tacc..,i-pc.s Cress. s .-xill Diptera, aleyrodi-Is
an,-I. ja:sFiI-.s i-,ere flyin& reaJi17 71 at these ter.,I-)el'atures. Sweeping over t'he T)lot, -,-,it nn-_it touching the vetc'-,-i ti-ps %-.,it'-i the rim of the net3 caught no I. T'_.is indicateC, that no sustained fliE:hts were taking place.
Relative registered on a IKTgroerapla at 4 feet from, tile ground,
was about I'0 -- fcent. On November 25, durin g, similar observations for 1 hour mi_-'_ _ltes, I noted one alate w..icjA flevi a -'ew inches at, 2 0 and
another t'InEt flow 2 inches --it 610. One female spread her .,ings five times r .) r 0
at a, tei incraturo bet,.-.,cen bi Fn 00 but CIA not '1,,. Two itere observed to '--Loroa tlie* to 5' a fow plates waliced down the
Ir winffs at 5 At 5L,
stc-Ls to the lo,.-,,er of the plants. An A-)'_iiCius was observed to fly, sl-I- -ish1771 at 550- :,Iie air was quiet and tlie relative humidity, in the 1-,_iosk, was about 50 'percei-it. These observations indicate that temperatures of at lec -t 600 are n-ecessar7, for fli 4it if alate I. 2Lsi 'hat have mall 0tured in -7ovember, snd t1iat te:-,aperatures above 65 1,"roule. probably be neccss -,,ry for sustained fli.-L-It from field. to field.

JAPAITESE BEE =1 CONTROL

Improved oraC-i-catl--o,,-i-metiod.7-Tree medication is now being emplo-,ed to :ill elms in arc'ls fol: w"tich clearalices have been obtained to cleallcut t!,-,c r)-.'oT)c.rtics. The no,.,! tre ..+. rleiit, closel- resembles the me',,hod
employed to kill stumps ol' era'Acated elms and to prevent
sp-o-u' j.n-, requires little time, few tools) :inc7 ineiqxaisive materials. A frirdli o::7' b,--,rk -),bout 12 incHes wide is removed E round the trunk of the elm to be -,nd a bond o-.' copper sulphz-,"Ic, in soliC, crystalline foIM,
is aro-,_)ncI the g-irdle anC held in place b, a Euitable waterproof mat e r 1, 1. r jsults in ti-ic quick de,, t'li of I'Ile tree Fnd in tic diffusion of conc-1-ntration of '61 e chomicl-l un "Xr the bark o, the tree to
pr-v(.-A info ,,'--tIon. 17n,, re arc approximL!tc. ly 2,600,000 elins in tho
10-<.Ale -")tr'ctjVi-I Zone '-..n 3,300,000 in tllio major Jiso ,scd arca that could 'be in tliis manner. Vicre tiaese clms, -7aich ,re of no
c or co. ,,( -c.i ,,I v ,J,,),c to be chemicall-,! trc, ,ted -ne- in addition appro ,i ,i.,A ;ly 1,0 ')'0,000 or dyinc; tr6 ,S removed in the work ar_ ,,aj theie
b( form( ,,d surrounding t,'a,, infected arc:- r-t b. ,rrier zone in w..lich the









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-10



E-g A,',pproximate:
LoI ocity clusters eggs :Parasites Parasitization
Number Nu~mber NuThmber Percent

S---e 1-. ne ----- 8 1,360 3)4 2.5

Faow lls---: 72 1~41329 2g~4 2.0
17 : 3,2L!-7 60 .
r-, non--6 1,194 54.9
p71 3t ----------. 51 : 610lg 14o~46.
Thupert ----------. 8 : 1201,g ill l0.6
Sp ringfiJe ld-- -~J 5,3239
Tot 1------------199 32,227 1,281
Avra~e--------- -~_ -5.0

"One collection of 16 egg clusters of ';. a,,:,er ic a -o was made at
Bellows Tai,.,ls 7t. in thle fall of 1975. Dihe se contained approximately.
3,136 eggs from which'30 parasites were reared., or an average of 73pr
e -1t Thr-ee species of -parasites were represented. Tetrastichus malacoso-t-.ae Gir. was by far thc most important species, while 0. clisiocampae Pnd clisloceae 'repesent in small -numbers."f

Willows severely dcma d by insec4-9.--iNative willows in thae vicinity of1 Con-1r d.'Ale-iie, Idaho, are being severely d;2-;-ioged by trio insects, Agrilus sp. andL Crmrtorlinchus lapathi IL., reports W. D. -Led-arr, of thie Coeur d'Alene, I drho ,lIabcorat o ry. This in,)ury is inter stin:, because Agrilus appear to act as th_,e prim,,ary agent in most caeses, withl- C. lapoathi acting in a secoi-daxr role. PerioCic examinations indicate that the bu-oreetid kills a.,portion of the willow shoot from the top tow,-ard the base and may kill the entire shoot bl! re")eated attack_, s during one or more seasons. Usually, however, a green portion iv' loft at thle bpse of the willow) vwh-ich is then attacked by the
we ~il. ltho hl quite seve-re in the vicinity of Coeur d.'Alene, this injury is c:? not groet Peconomic- siG~nificance primarily~ because w-illow is a ternporaryr jnhcse in the ecolo, :ical successions of local forest types. In addition, all top-killed willow shoots are sprouting' copiouslyr from the base, vrich inz~urcs sufficient ground cover.

Studaents_ insec t laboratory. --J. C. Evenden, Coeur d.'Alene, reports thlat on 'November 14a gro-UP of 50 students from Wa-ishington State Colle-e, acro.-v d ty R. IL. Webster, head of the zoology department, an,,' R. D). Siicnefelt, instructor in entoimoloe. ,y, visited thei field labor-tory atd Coeur d.'lLe A sr-ries of illustrated lectures shiowling; important forest insect's, 1,77211 as the- xrork of t' e labcratory, was gdven by the laboratory perfI-S beetlec c~uexten sive Jarnr)-o in Blacl:7 Hills.--L. G. 17,auiw-iofer, of t,1;1 FcrYt ol2,Coo., laboratory, re ports th-at >Iegroups of ponde~~ie ~x vfromn sapling to mat.ure size were killed by Ips 2Legon
Eie~. ~ I~9~on2er Si-!o. in the Black Hills of Sout'h i~a>ota during h
~r.v'tc c~.1.Man o t> p roup.- contiincd i,,ore theln 100 trees. Damage was
i~j' : r v'.Icnton poor n ts,Jcorn- the mar .n-,s of 16mberlend., on rockyr
















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in 2013










http://archive.org/details/newsletter36nol









mr tu-re tree s were remove -frorn, 30 acres of steep, east
covered TJ (I c n s '3 sLi c v e c te inlfec' e
7e.n lar-e s-- -)L-ies v:e-e ir("ee. r e M 07
Se7 -C, al 0, tLle -011 es
s r;n1_-arded a s a bli ster t c ont ---ol -.- -as-2-re t o ta,: -e t..o -!-)lace c-L:'
but onlv as a palliative t_ Iat -. a7.- elay t' ie s--)-ea' of e __se2se for 1 or 2 -rears. Its c-nly al_.v.-,-_ tagi:. i to give ---,,or-- time for
'i e r a Rib e s e t c t i on r o,-- E, -2 i -n a re n s o c r c a 1
-oires.

ozer o-oerat i ons in 11,onta.,1a.--Dur4.-ig "L-i e we e1c ending November 23,
-*-el,, 7,000 Ribes peti olare and 12,00,,- R. Lnerme bus'Lles were eradite along Creel: ne ,,r 1la-a..,-an, Eont. b -- *L 7a 11L.,ozer ar-r-1 hand methoJ.s.
SiXte--n acres of heav2r 10ibes c,)ncent--atiC1 _-a, in troam ty-_?e Tere clearecl dur in T, t'Ic week by slasliin,,- ane. bull _ozer wor2: -. A1t'.o1J,.1:!-_h t-.-.is pro--ress
in terms of acreage doe s, no4- -..,pcar v,:=r Creat, the acrea-e, typifyin, 11ibes concentrations in t'.ie most difficult working con_itio.nsj re )re ,ents the destniction of a v-.rT severe hazard alon: ,; a considerable "Z-stance of stream. It is estimated. t:' at b-0.11dozer i7o-1- will be compl 'UeC eC3out t--Iie first of December.

COTTON INSECT IlTrESTIGATIONS

Cotton 1 ,af worm control.--Thc ear-i-., aj.Dpearance and ,,,,id ,,s,,)read 6is.t-,--ibu-1-io_. of illacea Hbn. las' season madc it n-ccessarv to use
control measures in neLrly all sectio-lis of 'V'--ie Cottoii 1 elt and provided an opportunity at sev,: ral fiele- stations to 'Lest t]he ef--iciency of insecticides. The small larvae are easily killed with almost an7r arsenical insecticide, b at t-,-c L con
,e larvae are more dif-ficalt to kill an(L "frequently cause s i C1
enable defoliation before t"-,,-ey can be brou, ,it unOor control. As a result, fa 7mers use many forms of arsenic, from lead arse-, Lto to White arsenic or cattle eLiu. It is often difficult to determi-ae w' -Iether coiitrol mL assures will T)!7", as defoliation of plants after the crop is practically made rGsults i-n 'out little d7j,-ia -e and may be of benefit in roducin,'; the number of boll which breed in 1,* U
.1-Ge squares and ;o into hibernation. I n an exten :ivc; s ries of cL- ,gc tests m -dc by G. L. Smith and A. L. Scales at Tallulah, La. the mortality 7 of 1-ialf- -rown larvae after the use of various insecticides -ras as follows: P-ris e,,rcen, Pl percent; calcium arsenate, 90 p, rr,. nt; lead arsenrto, 92 Percent; 75 I)ercent calcium arsenatc-25 percent P xi7, -reenj 90 percent; C ,,0 percent calcium n arsenate-10 percent paris green, E-7 PerceI-A; 95 percent calcium arsenatc-5 percent paris groen, 97 percent-, 50 p ,ccnt calcium arse"L ,te-50 percent lime, 99 percent; 50 percent calci= nxsentp-50 percent clay, _0 perce:o.t ..-Icium arena
percent; te-50 pers-i-l.-hur, 94 percent; 50 Percent lead absent' te-50 perc-int sulphur, 99 perrc,-nt; QO percent sul-ohur-10 percent Creen, 79 percent; 95 percent
percent T), ris reon, 7'(D percc .it: cube, :.-rrisp and devil's-shoestrin "s (I.ilutpd with sull),21ir to 0.9 percent rot Lnone, 60 Percenti 59 percont, na 40 percent, ros-pectively; pyrcthi-wn, 92 percent; 10 percent
p, ,rcc-nt r)! xis rroen-90 pk)rcent .9-aln'iur, 65 Prcent; checks, 3 t o 1_
p(,,r,(-(!nt. At So C. F. F. Bon(ly an C. F. Rainwater dusted
of 11,to ( otton for "ooll weevil control vith a 1-2 mixture of
applic;. ,tion beini, rnade oil September 7-





-22



: Ca s e s Av-ral,e r, -: Aver-_g:e d.!7 ys tected : t 1 e L t a a in-festaticns :case required
ie r ca se to heal
Numb e r 11 7-umb e r Ni=b e r
---------------- 162 .72 2-7.4
-------------------------- : 25-9
P i -1 e t oil S :, percent -.)owCered : 66 .27 20.2
Pi -e 1, oil -Qe:-ce.-'U)
nal 4 6-e 15 percelit ---------- 66
1.10 .25 21.9

e ble sul-phur effective control of ,,o -t louse.--The demons+raof a 'ip J or tile destr-action of goat
'-ie uc wettable sulpl-rar
1 ic e c ie--'- on by 0. G. Dabcoc1-- on sevei al ranches in Nev, Mlexi co and Texas has elicite re-oortO -fromn ranc'=en and county agents on tl ie excellent
res71-.1 .-_ obtained With this material. Cne ranchman of Lake Valley, N.-Mex., peO. animals an,-! no-e i-,rere found a' 7here a .-e no lice -,)resent or. dip U
time o- Se-ntenlber une f i n- t t ime I have "had my herd
cle -.n of !icc. '.-.e sulphur dip, to my m:.nd, is superior to any dip I have ev: r -.,oeQ_, both in killinL, the lice at time of di. ping anC. in kee-Ang the oa's f"'re- from the pests for several iront'ns afteiward.11 County agent Paul o-L' Lorl"!_sburg, I 1tcx. rc--)orts: "One ra.-IciL11alI SE"id that his goats
- ield.elf. -,- )-,roximately one. quarter more hair as a result of the dipping r.lt I zn
Th, D cou--,+.,"/, !:,,,-,cnt of Bosque County, Tel-.., reno7'Vin, : on an e_, ,a nationin of a floCl- of PoF,ts th,-:t had oieviolaslv been treated :ith the sul-1yar clip, states: "A", t iis time the goats Sno- ,ed. a -oronounced ii=oase in oil and lustre in the fleece, a-)-)earod rnore ana had put on weiG h't. No lice wore found
on any of the goatz inspected at this time."

FOREIGN PLANT UAIWNTI117ES

i-11terc(-ptions of i.--itercst. --Three livi L Iarvae of the F. n f ru i t f-, 1 a s +
7 r _e)1, aci ,-sa Walk. ) were collected 011 Jrtl 3
a CarC14 _).nl occidentale) in t1ne field at Dor!-9ol P R. Fire157 -, ir cashew (A_-__ 0
larv C of the Meo.iterranean fruit fly (ILKqtitis ca-oitata 1.'iied.) were interce'-A, -d at, Posto-. on October 2, ) in a in s1ii-nls stor,)s from Greece. A ijvin-, larv, o-.L the valid 1;' or- )heis smerin-il-ha Hbri. was at Laredo; Tex.,
; 3 in a, ba.--iboo st,-,,lk in ba ,,,,,age from x i c o Tne coccie. Asterole--,i A7riS lo- Green arriT.,od at Viaslli.iinw-rtor D. C. on Earch 12 cii dri,-d la-iboo leaves in the from St. Kitts. Sixteen 11.vin rva of
-L g I a e
(-,all vie,, vil (Ccutorhy--ichus TA rostig7m., 1Mnrsh.) were taken at Noroik, Va, on Octob(.r c, ii! turnips in sto-cos from Donm ark. A living speci-on rce-)tod at San Francisco
M 'n 0" LO
ri o )h i 1u z, 11', otatus (Drb(,r) was
On i.,-1 n o-,.-Iii 7h, -on-is in (.,--rgo from the Philip-n D-J.s, !Jcc.vil, was, .zno ,,n .,,s ,-,,.to-h rnohus ,,ttiis Barber.
1,.-Irva of Clulrculio Grrv. -rrived t Chicago, Ill. on
tl- fro; ii An adiAlt of t',As wee-vil
r o froiii Italy. Living
was 1- _, 0'. _-tnuts in ci I
fl--Iic ,-'cl, Hal. vi, rc take: t Now York on A gust 19, o.,i S c o t 1 1-_,nd. Livii, 1-o c1lrysomelid






-12


I -n s e c t- -c i (a r s o f Du -. c'--. e L-n cl i s ,,a s C Clollins and T. H. Jones,
L--) jo LF-cio-,E: tor-,,, s- bmit -final of an ex-oerim-ent
E; f b in c o o -p e r a' -' c n .:i t e r u Da t c' -I e lip di se a s e
4 4- C-i -nit anJ +--rj Di Z4011 of For, !-t of t'-Ie Bureau of
T rL s' om 1 e i n a- urti*, in Se --.-ocr a man was stat i t cr, o f s i x points locate6- in ITe-:: Jerse-- ar, as wn, xe elms r,--re
i, :71,iere el7.s attacked b- the Dutc i elm (Li-cp-e h -d been prefc-: d an rc oved. :Ifte--e r:en collec'(-, i-se ts attracted to A.
71 0 I-L t-iroe
d e L s 7ix after a tree -L:' ,1Ld it was burned -,,nd
elled in its -.,)lacD. insects attr! -c e-- to the 'roes colin ;5 elatj-ne c-.-osules anci sent to the labo -,!-, tory for c s e insects 1 'I," re carryi-,s, the Dutch elm I iscase -47' n Lis (Ce-atostomella
-j. lmd Excr-pt for species obt.,-'Ined in. nezlil-:--ible numbers or lChose susp(-.ctod
Of '- .frequent in elm, tne culture results are ,,ive---- in tl e following
t


A ,Iu I ts :Adults 7ivin- C.
S-Decies c,,-Itured ulr,-i
porce nt
sh-----: 7, 200 492 6.S3
H--lur;: c inus rufli-ocs -------- : 1L 1 6 4.25
Saperf-a 07--.*v.---------: 7 5 0
ac-,:--ninat-uq FL Ib --------- : -3 0
coloiyas 7ab ---------- : S 0
203 0
..,--.a 92 0
-r 14 Colli
41d a J. 11421 1 0-07
-bita 77 -474 0
an,- tiCUS S,-17---: 14o 1 0.71
-42 1 0.11
---------------------- 21:, 0
-1.7 10biops basillare 118 2 1 69

L, co.-.nccl-ion bove cxp-riment e lm !ood i--,-ifeg'U-ed 7ith tho
c '- 7 of va: ious ,.su(,ts wag Placed in 1,- r-e scroe-,6. cages in
-yar a T'his .*Icod was obtained from troes cut down in the ft known to conted-n the, Datch elm dise, ,-e fxirus. e
'he vood vlerc r!ollectod indiviaiiall.y- i-.- gelatine ca psules and
T ios,- fro:n -.-!as cbtainod are listed
I Cont, ,Anrd .+:Ooa collecte;d t1ic .,ij,nt(,r of 1935-36 and the wx=er of 19'76.






-1)4


S-no,-7 :orces temporary suspension of scoutin. --Weather conditions wore Jn-E,!-- :avcra'ble for scoutin-- in the N~ew n~adarea duri-ni t~ae first 3 w~ee_'.s L:n- ::ov -mnber; honrever, ti e first real snowstorm of the s._ason, exceot
-c- ,,_:u-,tainous regi ons of Vermont where sno*w, fell i October, occurred
on cvif~r2~4 and' 25. Scouting- operations Nwere temporarily suspended.

Lsr, e colony being eliminated in New York State. --Intensive clean-up i- b -in- done at the site of a large inf estationi in Shawangunk, Ulster
Couny, Y.In ddiion to the careful scoutin.-g of all trees and brush, all t-few stnes, and debris are being examined. 7Lhe colo-ny is in rural territo-- and is bisected byr a r-ain State highvay. More than 1),000 ezg-r die-ters, w7ere located andL destroyed" by 3'ede-c!:l vorkers by the end- of November. These men are su.-ervi se- 'by employees of thie New Yorkc State Conservation Deuoartment working in close coo-peration vithl the Federn.1 Gypsy 11,oth Off icc.

ITo inf e sta-t ions fouic. in New Jersey. --Particul7ar atte-ntion is being
I~fiven to the area sarround'ing an assembling cage in Mendhamx TownshI'ip, Morris
Co;ny,7.J. w-here a male moth w--as recovered during the summer. A
special effort is being, made to exairine all sm-all growth, dead w-ood., rocks, anfd ledges, which may soon be covered with snow. Crew.s are also enga,:ed in very clos e scui'wr nPsacad omerset Counties and in more open
s cor0 n in Es s2ex, 11orris, and. Union Couties. No infestation has been f ound, in N~ew Jc",rsey as a result of this work.

C. C. C. gypsiyMoth w-,orkz increasing in New England. --Gypsy moth work perfoi:r.med by members of C. J. C. camps in Massachausetts, Connecticut, New Hamnp7shire and_ Vermont, in thle re-ion east of and. adjoining the barrier zone, iroc-rascd materiallyd-aring Novem~ber. Many new-. enrollees have completed their trainino- Period, anOd have been transferred to fiel. work, increasing the averc-e number of men employed daily to 1,189 at the end of thie month. Since July 1, C. C. C. men have scouted over 400,000 acres of woodland and more thian 1,000 miles of road-'si c1as; have examined nearly half a million isol ~tPd trees and more, than 33,000 yards of ston.,e walls; have thinned and cleaned over. 2,500 acres of woodland; and. have discovered and treatked nearly 2,200,000 egg clusters. In addition, about 1,700 worthless isolated trees
were d-estroyed.

Heavy infestAtion in Masachuetts beng creosoted by C. C. C. men.-One pas of the work accomi-pli shed b-r th,-e C. C. 0. men is typified by their riork in 3ernardston, F'ranklin County, Mass. Tliere is a heavy infestation of '-ypw: o~hs in this tow,.n in an area where maolo, hickory, and ash prediorai,- to,' with scattered pockects of gray birch, popL&', and oak. Althouj-i this ,ewt is not co-nsidered especially fvorcefor the gypsy moth, the men nnecreos-oted rmore than 25,000 egg clusters in an area of approximately !50 ar

:u~rertion for future -rpsy moth w-,ork- in M1assachusetts.--The E. C. 17. Fors r, ''I, stcd by a smerll crwof men fromi the Greenfield C. C. C. Camp,
i7, in> t-ypou-tm,-,ppin, (a block of wooclanc i:: Grecafield in prop,-eration
} ~tk~" iter' yE.>,. oth work. Ther as also running b'aoe(or control)




-3
T"; 7 -1
= 7 FLY _--70L

Fel-er flies tra-DDe n E: re r -c-L
co- j--c In th,- I ow; Fic iaea
n.-' t',,e h-arv t of f r-ai t I r. s c t o s l;
1'ae custo ar,, of ,,,rove i nspe ct i -- --is a--,7. re---r- c
-rcv re in
100 -no-cent of cc-- itinn.
m e n t s t c t 1 1 c e r t o t a 1 ao,) r c
10 s M1 rc c C,- 1 1 r, s 70- !no'VeCl by v7atFr st,%rn r,,rczol, s i c. 1 c,7 IV- e t ', t t 1-.e -0 0 7 1 C
of Inst SE ascn- Only Lnastre-oha s .3 1
year, while for the pe-I a '- Lp S,

f',ZB= A:rD

Yore -m c----7. o E- 2 o r n r
stat e s -,, s re -jort ea - vi r c)i c3rn r o
i n tie vi ci n-- t o f T7 1, 01 ;,,a s r a
ve-,r on rccor,.. L. nc- K. D. Of tl-l(
110-7 a, 4-- -f "a
G Z) S C, 'v
ab--r". -ce, frc: i


t i o In -r(7 c
Bas,- r)-n 0-7 c' "!7 c i 1-1 IN7
--cl r
S C,
c ner mr i n f i r- Tt j 7
b I y 'li
f cr I,. TU
C r) .1 I t L
in 937 ic of

L
7
C C i:,-. r-,, I
t", r
P- f ro
PC r e r) r C C)
+
C
tm c n t o f Pw
A. of Ci c
inoth, j,,,.
f rom.


ar- t'.j,






-24


Anctiler over'ourdened -ourse.--A couple claiming to be from California ane. i-_-1fcr7"ned1 as to plant quarl--rtines made sure they could brinp back
before t22 :ing it to Yexico. Returnilig 10 days later they claimed t'-1 no plant 'zia-terial. Tne Laredo custor-s i--as-oectress insisted on exrin- 'he laC'yls p-urse, 'hoviever, and founeL !o oranges in it. In the
Mer '!7 e -ie' p1cmt quarantine ins-pector had found potatoes and apples conc e n v-rious places in the car. 7-ae woman said she would not pay her
7,i-ne, o to jail, but her husband oaif-:' t'ae -f ine and apologized f or
,-n;,-o Mikell is a cool- in 'he dinin car of the
Cr.ol._ fcun_ ; L L
1, between 1,,1exico 'ity and San Antonioy
ii- cific Railroad oper tin,,ex. Tne United States customs inspectors boa.-C, the train at Laredo, Tex.,
a n,,'- ins--) -ct the a-nd. the pass-engers I bag,- -,--e en route to San A- ,.toiA o.
On one tri-o the i-ns-pector pic_ ced up a mango seed, on another tri-P he found a ir the cool--ts p P.ntry, and the evidence all pointed to Mike as being
7*Uilt,- -,ocrsol-.. On a third tri-o man,,. ,oes -found in a fruit jar
un ,er the fish and ice. The irspector tooh the mangoes and 1%,Iike to t1- c c__,_ief stev.,ard nnd s--id: "This is the tnir d tine I h-ve fo-and m-ingoes or eviz.e.,,ce of in Mi"Ikets kitchen 'he has to -o'-'v a, -L ine or someIJ- be done about it." The steviard s ,Ad 'Uo "Get yoor t1'Li'nL:- off the c-.r at S-..- Antorio; you I-,re be; ng put on tho -rounc, for 70 Ctays. At the e of 30 days EY.e iTras bac1: i-n his kitchen a.-Z. declared he 'he.cn't really misse,",. a- meals) but had -oost-pone(i a few, an. that 1--is craving for ma,_17oes
cured.

P t, o 1 o,,- i c a I interce-otians of intcrest.-AscCchyta -)isi Lib. was
fror,-, Hungar-.,, for tile -fi-7st time Sc-ptembcr 2b in hairy vetch
in at 1,-,evr Yorl:. Ce,,n tostorr. ell.-,i fi-ibriata (E. & H. ) Ell. vias
i-_1,_terce- t,-C. or, c;F .rrot fror.- England October 27 at Fort Artirar (see Ncv!s L -tei- -vQl. no. 12, 4 p 26, December 1, Our first interception
.1 P
of Cercosno--a nicotianae Ell. CZ Ev. was made jt New Yorl: on Noveib r 23 in
4 .
t ob a c c 'VeS -i -tores from 1-1a i t i Cercos-ora -o-'roselini Sacc. vlas a-lcl-ilia 0:1 parsley
interc(;_)te for the fi rst time o-i November 19 at RM., fro:- 1- 02occo. An un ,etermi.icd species of Ascoc'--iyta vias four,'" oil tic same S 0 73 gfLjnd-os,)orium. fqr, s -1 ant' emi '11. L Doaxii. was iiitcrcoptod for the fir7t ti:_-,c on Hov-_7, ibor 21 at 3ro,,-insville on chrysanthemix-is froin Mexico.
n.,cjon enap. Ell. Pc Hals. vr-,),s i,n crce ,-)tod from Europe for the
fir-" ti-.ie or. Tovember 5 on e rf,-'PlPnt fro-m It--ly. Our first intcrce-ption of ,loeoc-oorvam, rms -,,rum Cke.& M ass. fro-:. Brazil ,vas madc on November 25 at Dos on. Our f4.rst interceptions of L= -:)Iiaovella, Sniriana Miy. were made on 0( '.ol).-,r (I an L 'Nov(, mbcr 10 at Nev Yorlc on rice hulls from Jepan. A funcUs aiid C. eosporium type v.,Ps found on s-pruce cones from G(- t iTcn- Yo ik or. Oc toho r 9. Sl)eoialists i, ve. been unable to -L 1 d any
6 _-scriptjon, in citiler f, ,>
enus, that a,-rees with the r,,I,, Iterial. :isciflor-uTi (ToOe) JL-u-.nies was iiterccptod for the first time on
r 4 on ros,. from at Our firs' interce- tlon of
C, 7 5 on a )rimrosc from
i,-t n vias m:, de zat Norfol1c on '-,ovot iber
E d




-7


4 cz
onl-( cims be, those of
Portio--,-s of .riaa vioulr'- bc tr,, -ted -l --s --re
pcrmitte( to rem,-i- for -'s
Novomb, ,r 29, cl-- craic! l tr -A--.- ----ts 'raCl I I t a 0 C

7 2 :-np 1 i n 10 c l t c S J-ru 1-1 C,.,) e lm s c, s. --A. cx7, r i.
t c C t s ju s- lu b e en co.m-l c- r on
p-.t lio 1 o'--i s t s th,, o-f Pl a n 'Ll I nd.7a s t r, ,, t c r i s C T
e lm d i s c; a, 7 e r-- t o r,, Trunl v; r.-- r om a IColl o o vvm i s ;7 s -,,I ] -l t
m e r a : id a, c o .,. F i r ff' i nf e c e i
1 i ne was started about thc the C f f !- l 1 i S
hr,,d --i-nishod their systc-r..:-,tic c-irveys of --;c' o-.-- r "ed
41 .-f rr.- later confirmed is i-nfected. EL -t- f
tlie ,cout- as poszibl-,, ;-Z,-,l--- 4
viere without t by
and 10 i
diseaseO, trecs fou'lld in t'A raF cre

Zeo- :is-li ns 'fir L -"itional W. P. --s. --A
inltt c-d to t'.io H -,ven, P. A. ot'-7 i c e r 1 C --n-'All, d I-1 --(.,rs
to be use6. on coppc r suln-,-, tr, of t--l" 2 1 n C r
(li s t r i c t. Re q-ui s i t i o ns i-i; '---n ,orz: W .
or 7 1'0 ad,'liticnal men, 1; tl- e Y)rk 0- en
to 1,1M In !Ic- T ,rocy, r-- -01- -.',-r c
acldition l.l A. r
1 ,1000.

--A

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viere c L

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in
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li n e s e.t Ce rtai-I b loc,-,- s i:-- no r' rinn- into 1,1

.-,,,ith cf f, i I

D. C.
of
Senior amn
Cl,- rif7- S e S e --or- a n,- -c --es -- c
pict---r,--7, -.-.rere -J-.-.,n to some o-f the ne,-, rrcn in -o 4ve a
idoa o: tl-,e -.-,,orl. to be performed an.,14- th --- r--,as,.,rs -.;,Or 4 1

Pm:rress of' the il moth -..,or7- F-7
bro*in-t-ail mot'.,, proj,-- -ts in lilaine "uset ts
t.- cn, t c
an,, des
t -.*0
ci(luou h-.-O
900,000 tr. ab lu.t t
t-n-11n 17W G' !, ,irc) an(" --iere fo,--,---7

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Ef -L ec t of calc ;E-senate on certain. soil t7,7)e s.--F. l. Tuc.Cer
S t--t e -e :iss s-Zo-i tte a pro ,ress report o-.i e-_ "'-fect of Calci- _--_ F-se*r_ E te on cort _- in soil- tly-oes e_- i-e-_-_sivel::- use L for cott on gr07ing in
is7i-D-)i. sc,%re-n o f t -=_ es .-,ere pl 7celc in cc-cre te "bins"
16 1 foot, o- n ,.,t the botluo, ij an_ _L Utro te -,-.,ith cnlciumn arsenate at
i e r t e s o f 0 ; 10 0 2 0 0 4 0 8 0 0 d 1 0 0 0 o u -,o (-- r a c r c Cotton, co-rn, so -be ,.-_,-.s ,- ere --vzn on erc1-_ _-lot during 'he s- =...er cover
cro-os t',ie winter. Samples of soil -.-,ere tclcen for on lk ,,7 14,
G %-.reel :s af:te-- the calci-Lum arse-.-_, .te "had been ad e ., ane, -." !ain on
ju i - i t o 0, L-U_ L ha d
Duri n,-, the 14--lonth 4-',,rval t1ie i-ja'er-soluble I .
75 (-- r e a s c -frc)m 23 percent to 4 percent, in the different soil t-nes receivin-11 fr&.. 50 to 200 pounds per acre an from 40 percent to SO percent in the lot7, receivin::- 400 to 300 ounds pe acre. The everag e chan-'e in 7,atersoluble arsenic in all. soil t,-)e s was from 6.3 to 2.0 -parts As-0, per million of s!-il in t1ao -olots receiving frC'M 50 to 200 !)0unds of caltium arserate an -_' fron! 187 to 64 p- reccivi und
-Pm of As20 i l "Ie D10's 400 to l)'_OO po
-o-or acre, or 5,7) perce:it and 65-percen', res,,.)ectivel-,1,. The greatest relative cnan, ,_- were the iTorfoLV ancl. Sarjx types fro.-2 the -hill and Delta sections of t1n,- cSt.-te, res-pectively. The least changes %- rere in the Houston (-northeast 1)rairic) and Cahaba (northeast 'hiCtilancl) ty.Loes. The reduction in vratersoljblc a2se--iic iln the Norfol', : sa- -. d is c.f interest because it is one of the t-;-T)cs t'--at showed heav-- kamaee to crops. It is probable that tfie arsenic was carricZ out with the drainage water or se--,-0d bl3lo,.-i the sarlplillp l6vel. The yields, obtai-ned on the concrete Dlots ij- 1971-,'
_/, u-Id 1936 -,-!ere not
s a t i S'fa C t o r, 7 because of th-Ar small size. The e.xtreY_1ol,,- dr-Tr con,-lition at Pl,-intJ.-_,,,:r an throughout the s,1-asor. ir. 1936 also affccte(l the -L"'ields so the-- are not considcreO, relinblo. Dcla- in -ermination was evident, il ever, on the plotsreceivi.ng 'he er dooc_ -es ff calcium arsenate in
b o th e a r In field plots planted to cotton in 1935 on Ruston, Men:;t1is, Sar-r)y, Houston types the yield .-ias reduce, only on the Ruston plots
-!_-iere 200 or r:ioro i)a).nds of c, .lcivmm arsenc.te i-)cr acre were addeJ. The Ruston plots .-!ere replanted to cotton in 10_ 6 and, --iel s .-.-ere reduced on the plots with ) M and 300 )ounc1.s per acre ane, no cotton was ,Dro ftuced on the 1,600nour.,J_ -- lot. The indications are that tiie -plot -:1,1aic'n received .00 ?ounds per acre is recovering -,,.

PINK BOILWORM A17M T11UF3]RIA C-O1\,TROL
Gin-trash insie _'i i sp, tions were conction. --Intonsive e7-i-, -t-_ -as' n ",
tjnu ,c! in the Western Exten!-,ion of Toxas OLurii-.,--: the first 2 woe'-s of Novem.b( r, at ,-ihich time a freeze weaF. in that area.. This
lowered the, efficiency of ins-Decti:)n an("; in ,,icn,' )f the larg0 amount alre(a C0-no, inspor"-A,, ns vi -,re Jisc,,)) 1J.nu _,C.. No spoci -.ions of the pin!- "Jor.,; found. A iac.-iin -aas, onerr,.teO,, in Co.lifornia and
in S,)nor, -t, Mcl- ico, fInc1ini, an 7 infect -(;ion. In the Tucson
)J' Arivcn, vias ,-?,b, ut weell--s Zitlhout -Cindingany
,f t11- 21 s-oecif,,-ns of the Thurberia
C) I had been con.:P vv, rr fl- i,,,Y,-- At be c*,n
!AcA', C_ in o,,(, -)t thc S.-ilt 'iver V Ile,,, Arizona. T-,-Io machines
tin-: in tMs ,,ill t',-(, se,-so-n in --ib,)ut 2 more weeks.











ll 7
Pe r c- -n t Pe r -t
4.4
Illinois 1
i C: 10 G ------------I ov!n, L-717---
C: ----------7

P a n, s - - -

Of t'-,-- 1 --u-survivr-1 stj, j L.- 2
lp s s t"lal, t',- e r c--- P me' lz.l G 7 ", pe rcent P i a n,., 0 courte--l- -"r)r on tht- basis C'I" t1ae tassels n t o -f
a a c t 7a s s I t i f a i n 10/ 3 In t,!--ith 1--c--mediate survival in 103 '--at 1 o,:, r t-193e. One was Mlissoari K7, W 0-2 F- c- t I
ly. -t'-ner was 31
rid 19 b, res -)cctive n P; r
cent 'borer s-arvival in lg.,, and lc3,-), rcspc:ctively.

s ?,l e c 0 1 IP c t i 0 11S of E-dro -rD, or
Causetts.-C. --1. Clarl- nd 7 D. 1,2 bol-,-tory, report t ip, corn-1 etion of r 1
ni sh pa r 7 s i 7 f o r c 1 o- n i n lc 7 most of 1 0 0 nc .
S 4 t i,., i s rv
or c-) i t t i,7 n
in pri- vlc-s 7 from -:,urr,;
V'; it, r 1
from 10 tr) I rs n 7. : -,' "I' prac ti -,l t- t f or 1-
b o, re r, f t- 7ri tic,,11 d. L. P.
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between attraction and the chemical and physical properties of oil tf
t1- t'' tyuS, but it, is evident that at least certain grades of citr~-ell oil re L~omsng chea-per substitutes for geraniol.

2xrmental rearing of _oriental frui oh~rsts-xeiet
conh :cted thIi' season by G. J. Haeussler, of the orie.-Ital fruit moth project at Mloorestorn, ind-icate the possibility of utilizing growing oeach__ t1-1ees enclosed, in a cloth-covered cage for rearing certain species ofF orcta ruit mnoth' parasites. The tests were made in a large cage constnucted. over 30 _7-yea r-old trees, the cagce being divided into g comnDartmrents in vfhich most of the various species were tested individually. Ani inrcrea--e in t-he number of females -0roduced over the number used for reari-ng .-as obtained- for only three species--Bassus diversus Mues., Dioctes molestae TUch. and Org'ilus longiceps Yues. Production of female
-oroenr ,-as fairly good also for Eugadizon extensor (Linn.) and 'Macrocentrus tl-ioracicus (I\ee, teared together, Macrocentrus ancylivorus Roh., aly~pta r,:.fiscutellanris Cress. and the imported Ja-.pnese Aptinteles spp. The sex- ratio in the last three named was particularly in favor of the females. Other s-occies tested gave entirely unsatisfactory results. Qbservations indicated that the trees used in earl- season tests with B. diversus remained in much better condition throughout the season with re~adto continued availability of succulent tviigs suitable for infestation than th~;on which te-ts were delayed until pa;rasites of the other species became available. This vas pa 't ros-consible for the comparative succe-ss obtained in terearing of 3. diversus. The cxneriment has
indicated that all of -che s-oecies namod aove can be reared with varying ee~rres of" -uccess ;~caEgd trees by the meth-od-s used this season, Provided thie inoculatiors are started'earlyr enough in the season an0d undue competition between Fpecies is avoided. The results obtained with the s -)ecies tested are summarized in the following table.


Proceny :Average: Sex
S-occies Period *orodiiced :progeny: ratio,
of : le s Total:-FemaK ls: per : fete st used : f :emale : m,)l e s
'Kumb e r Tbe r: Numb er : Nupb e : Percent 2ssu cvrss-------:520-3/5121 :2,233 : 2,219 19.0 99.3
D'I oe rlAe--------- :,-/20-7/24 : 100 :339 : 119 :3.4 :3.
Ci11 j 0-o 1oujceP.~i--- ------ :6/9-,S/17: 106 355 : 128 : 3.3 :36-1

-___ 261 63: 2.9 :214.1
7.r~~e n c-rnlvors-:7/3-9/17 : 75 1114 : 6 1 :1.5 :53.5
GiytC~+ e teleis-- 731-/l : 71 : 57 38: .8 67
A~ne~ sp-p. ('n )-- /-/i : 9 : 25: 15 .3 6.
Tech Ppp. (JapLan)----:/i-/8 : 1. : 1.: 0 : 0 :0.0
2 ~(Jup!)n) ----:7/F-7/24 27 : 0 : 0 : 0 :

(2xn. )----- --/ / /2)i :19: 0 : 0 : 0 -










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