i Vol. 3 March, 1946 NO_ 1
  W. D. Armstrong, llorticulturist, Editor
. KENTUCKY CODLING MOTH program. The test was run in the
 · TEST WITH DDT__]g45 Park Orchard of the Kentucky Car-
 . dmal Farms at Henderson. This
_ w_ D_ AR]\1‘]S'[`R()NG orclglard has long been heavily dam-
. _ age by codling moth, with several
Codlmg moth 11*1S lmlg 1**11 111* crops virtually wiped out,
main insect problem in the produc- I M. I , _
tion of apples in western Kentucky. 11 S°_1111~ up me C’$1°CY1m€l11» ll
Because Of hop du, wcmncr and 3 was decided to use a mixture of ar-
light cron in lg_H_ many Kentucky senate of lead, DDT and summer oil
1 apple crops were literally eaten up 111 111<‘ f11`$1·1¤1`00d SDYHYS, and mco-
4 that year. In 1945 it was highly de- 11110. DDT and summer oil in the
 _ sirable to get SOmC KCI1tl1Cky rCSl1ltS F<Ԥ"111<1-1>1`00d sprays, since these
with DDT because many schedules mixtures had shown up well in 1944
using arsenate of lead or nicotine in Steiners tests at Vincennes lab-
had not stopped the worm attack in (1l`21l<1l`)' of the Federal Bureau of
1944. By setting up a cooperative Entomology and Plant Quarantine,
. Experiment Station proJect, one A check plot left for comparison got
grower was authorized to purchase arsenate of lead and summer oil in
enough DDT to spray a siaable com- the first brood and nicotine and sum-
mercial block with a fortified DDT mer oil in the second brood. The
. Table 1. Spray Schedules Used in 1945 DDT Spray Tests at Henderson,
Kentucky
Z 7 WMV 7 1 4`ht·t1k l‘l··ts DDT Area
  Spray 1SFrn-at:'d` Mnlwini, \,,.,» 1..1*1 any S11»l;;`;nd }l;itt-ri;rls]n’·1`1(1(l gal.
` 7 rrkr 7 1 1 1 ` ' 7 7
lst Cover 1 4—l¤ 4 lhs. 1ll`S¤·ll:11» of 1l·;nl. -t-1< 1 lhs. arsenztte of lead.
1 1 lhs., limo 1-l-1101 1 lhs. lime; l-1-100 hor-
1 lu·rd¤·uux;