52 • 



first larva? hatch and enter the fruit. Ciird found the eggs about 

 three weeks after the blossoms had fallen. Cordle}' found that in 

 1898 the first larva entered the fruit about Jul}" 1, the egg from which 



Fig. 14.— Band record made by Prof. J. M. Aldrich, Juliaetta, Idaho, on 40 trees, in 1899. 



it hatched having probablj^ been deposited about June 21. This enter- 

 ing of the fi'uit took place about two months after the petals had 

 fallen. The writer found that in southern Idaho in 1902 the apples 

 were i'l full bloom about Mav 13, and the first larvre were noted to 



Fig. 15.— One of the records made by H. E. Burke at Boise, Idaho, in 1902, to determine the maximum 



of the second generation. 



have entered the fruit June 11, or about 25 da3\s after the blossoms 

 had fallen. 



From these few observations we find that the moths ma,v emerge 

 some time before the apples are in bloom, and, depending largely 



