C0DLIXC4 MOTH IN CENTEAL APPALACHIAN REGION. 23 



One larva was taken under the bands on June 19. The number 

 collected increased throughout the remainder of June and the first 

 half of July. By referring to figiire 13 it will be noticed that during 

 the fore part of August there occurred a series of very small collec- 

 tions, and about this time evidently most of the first-brood larvae 

 had left the fruit, while those of the second brood were still feedmg. 

 On July 15 newly hatched larvse were observed entering fruit in the 

 field ui sufficient numbers to exclude the probability of their belong- 

 ing to the first brood, especially since the last of the spring-brood 

 moths appeared on June 27. The second-brood larvae did not 

 hatch in the laboratory until July 19, but this was probably three or 

 four days behmd field conditions. Allowing for a normal feeding 



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Fig. 13.— Diagram to illustrate band collections of lai-v'se of the codling moth at Winchester, Va., in 1912. 



period, some of the second-brood larvae should have been leaving 

 the apples about August 9 to 13. The collections increased through 

 the latter part of August and the first half of September, No larvae 

 appeared under the bands after October 18. 



During the season of 1912 at Winchester 798 larvae were taken 

 from the bands and reared. Of these 27.19 per cent were killed in 

 hiiiidUng oj- were devoured by th(;ir fellows after behig placed in 

 the rearing cages; 28.57 per cent emerged as moths of the first brood; 

 1.38 per cent were parasitized; 42.80 per cent of the larvaa collected 

 wiritffred, and 15.04 pop cent w(ire winter kill(ul; 27.44 per c(Mit ])asse(l 

 the winter successfully n,n<\ e,merged tlici following season, while 

 0.38 per cent represents the proportion of [)urasiteH tliat issued iu 

 tlie spring of lOl.'i. (See Tabh-, XV[l.; 



