CODLING MOTH IN CENTRAL APPALACHIAN KECION. 



29 



Emergence began on May is and reached its highesl numbers on 

 May 30, 12 days later. However, since first-brood larvae appeared 

 under the bands on June 11, it is probable that moths emorgod in the 

 field several days prior to May 18. The moths continued to emerge 

 through the remainder of May and in lessening numbor through the 

 most of June, ceasing to appear altogether after Juno 27. 



The records of the appearance of 273 moths of the first brood that 

 issued from band-collected material at Fishersville in the summer of 

 1912 are given in Table XXII. 



FIRST-BROOD MOTHS. 



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

 Fishersville, Va., in 1912. (See fig. 16.) 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



July 2 



5 

 7 

 35 

 30 

 55 

 35 

 31 

 26 



Aug. 1 



15 

 13 

 16 

 1 

 3 

 1 





5 



9 



9 



13... 



13... 



17... 



17 



21... 



21 



25 



Total 



29 



273 





The work at Fishersville in 1912 was carried on under very ideal 

 conditions, and July 2, the time when the first-brood moths began 

 emerging in the rearing cages, represents field conditions as nearly 

 as is possible with band-collected rearing material. The time of first 

 appearance for the first-brood moths was seven days in advance of 

 Winchester, while between the first emergence of spring-brood moths 

 there was a four-day difference in the two sections. 



Moths appeared in numbers through July and the first half of 

 August, attaining their maximum on July 17. The last moth ap- 

 peared in the rearing cages on August 21. The relative time of 

 appearance of the two broods of moths at Fishersville in 1912 is 

 shown in figure 16. 



BAND COLLECTIONS. 



About 12 smooth-bodied young York Imperial and Ben Davis 

 apple trees were banded at Fishersville in 1912. On the whole the 

 records given in Table XXIII and figure 17 represent fairly well 

 the time the two broods of larvae were leaving the fruit that season. 

 Three larvae were taken under the bands on July 1 1 and the number 

 increased in the succeeding collections until about July 1, when the 

 number gradually decreased until the fore part of August. By 

 August 1 a large part of the first brood had left the fruit, as is evi- 

 denced in the band-record curve of figure 17. 



