58 



ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



qge of less than 1 calyx worm to a tree was obtained. In general, 

 this shows that such spraying' practically exterminates the worms 

 that go in at the calyx and also shows the superior value of the first 

 spraying in bringing this about. 



^ - 



CALYX 



000 00/ 0/0 100 //o 



UnSjbr'd 3 'S/)ray 2. Sbrav I'Sbrav 2S^rayi 3Sbrav^ 



only Off/^ Off/y 



Fir.. 1. — Cliart to illustrate relative value of early sprayings on the tirst brood of 

 " worms " of the codling motli. 



Of those going in on the side a slightly larger percentage escaped, 

 and as would be expected there was also less ditterence in killing 

 power of the two sprayings, and more gained by combining them. 

 Though lower than in the calyx, the killing power here indicated 

 is very high. 



