32 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



SEASONAL-HISTORY STUDIES OF 1911. 



The results of the 1911 life-history studies of the codling moth are 

 in many respects similar to those obtained during the previous year. 



The main difference is that found in the time of transformation and 

 date of appearance of the different stages, which is ascribed to the 

 prevalence of a very unusually high temperature during the spring 



