October, '13] 



HEADLEE: CODLING MOTH BROODS 



391 



trunk and branches were carefully "wormed," all eggs removed to 

 August 6, and all apples showing traces of infestation to August 12. 



Actual Breeding 



Moths to the number of 163 drawn from sources described already 

 in this paper, and therefore of the first brood, were introduced into the 



Fig. 7. Chart representing the number of appearances of each stage of the cod- 

 ling moth and the period occupied by each appearance, as shown by cage studies. 



