CODLING MOTH IN SANTA CLARA VALLEY. 

 Table XLVIII. — Second-brood eggs: Summary of Table XL VJ. 



159 



SECOND BROOD OP LARV.E. 



Time of hatching. — Eggs obtained in the cages hatched from early 

 August until September 25, but as the first moths did not oviposit in 

 confinement just-hatched larvae in numbers were probably in evi- 

 dence in the field from the latter part of July until the middle of 

 October, when most varieties of apples were picked. 



Feeding period. — Apples on which eggs had been laid were placed 

 in jelly glasses to obtain a record of the time taken by the larval 

 development in the fruit. Although in most cases several larvae 

 entered the same fruit more than two full-grown larvae never issued 

 from the same fruit. The apples used were yellow Newtown Pip- 

 pins and were large enough to provide food for several worms. The 

 larvae have a habit of coming out of the apple, wandering around the 

 glass for a few days, and then entering the fruit again, thus extend- 

 ing the period of their growth. This habit may account in part for 

 the large variation in the length of the period between hatching and 

 the final emergence from the fruit for the purpose of spinning the 

 wintering cocoon. The maximum time spent in the fruit was 7!) 

 tlavs and the minimum 43, with an average of 58.15 days. 



Table XLIX gives the record of the time spent in the fruit of 39 

 individuals. 



