66 BULLETIN" 429, U. S. DEPARTMENT OF AGRICULTURE. 



SUMMARY OF RECORDS FOR SECOND GENERATION. 



In Table XLIX there appears a summary of the records on the 

 time development of the codling moth of the second generation in 

 the stages of egg, larva, and pupa. The sum of the average periods 

 spent in the several stages totals 41.8 days as compared with 41.4 

 days given as the average length of the life cycle of the second genera- 

 tion. These figures compare very closely with corresponding data 

 obtained during 1912. 







