FARM FRIENDS AND FARM FOES 



they are likely to nibble for a few days before they burrow 

 down toward the core. When once within the fruit, they 

 feed and grow for about a month. Then they leave the 

 fruit and find shelter where they spin their cocoons, within 

 which they change to pupae. Each insect remains in this 

 pupal state for about two weeks ; then it emerges as an 



adult moth, like the 

 one that laid the 

 original eggs. 



These moths com- 

 monly lay eggs for 

 a second brood of 

 worms, that de- 

 velop in the apples 

 throughout the late 

 summer or early au- 

 tumn months. The 

 larvae leave the ap- 

 ples when full grown 

 and, in the shelter of rough bark or something similar, spin 

 silken cocoons, within which they remain until about the 

 time the apples blossom the following spring. Then they 

 change to pupae, and change again in about two weeks to 

 adult moths. There are two broods of these moths a year, 

 each distributed over a long period. 



The injuries of the Codling Moth larvae may be pre- 

 vented to a large degree by spraying with arsenical poisons 

 in spring, soon after the petals of the blossoms have fallen. 

 It is especially desirable that a thorough spraying be given 

 before the calyx end of the young apple is closed. In the 

 picture above, the calyx in each of the outer fruits is open ; 

 that of the larger, middle fruit is closed. By means of the 

 spraying machine, the fruit grower is able to place in the 



APPLES SHOWING CALYX OPEN AND CALYX 

 CLOSED 



