26 



DEPARTMENT OF AGRICULTURE. 



very slight. Maximum emergence was not attained until one month 

 later, or about August 1. The last of the first-brood moths emerged 

 in the rearing cages on September 1. 



Table XIX— Emergence of first-brood moths of the codling moth at 

 Winchester, Va., in 1913. (See fig. 14.) ' 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



Dateofobser- 5Sf 



ration. of moths 



emerging. 



June 30 



1 

 1 

 3 



19 

 10 

 5 

 9 

 10 

 16 

 33 

 45 

 62 





28 



July 2 



7 



28 

 37 

 3 

 5 

 2 

 2 

 4 

 2 

 1 



5 



10 . 



8 



13 



11 



16. 



14 



19 



17 



22 



20 



25... 



23 



29. 



26 



Sept. 1 



29 



Total 



Aug. 1 



326 





BAND COLLECTIONS. 



In 1913 bands were placed on 12 old apple trees in an orchard 

 located about 2 miles south of Winchester. The rough bark was 



75 

 70 

 65 



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 30 



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 £ 20 



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BROOD 







SECOND* BROOD 

















MIL 



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«. *». tvi <vi cj n s (\i <\) ^ ^^-rvjcvjO — ^ "-*■ ru cm co ^»*^(\j 

 JUNE JULY AUGUST SEPTEMBER OCT. 



Fig. 15.— Diagram to illustrate band collections of larvae of the codling moth at Winchester, Va., in 1913. 



scraped down and other hiding places of the insect destroyed, and 

 on the whole probably most of the larvae that left the fruit during 

 the season found their way under the bands. The record of collec- 

 tions is given in Table XX. 



