April, '11] 



schoene: cabbage maggot 



211 



TABLE I 



PERIODS OF MAXIMUM EGG DEPOSITION BY FIRST BROOD OF ADULTS DURING 



1908-09-10 



Date 



1908 



1909 



1910 



May 10 



12 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



June 1 



2 



8 



4 



5 



6 



7 



8 



9 



10 



11 



Very few 



Very few 

 Few eggs 



Abundant 



Few 



Very few 



Very abundant 

 Very abundant 



Abundant 



Very few 

 Few eggs 



Very abundant 

 Very abundant 

 Abundant 



Abundant 

 Abundant 



A few egga 



No eggs 



Not so nvimerous 

 No eggs 



