APPLE INSECTS 



41 



Fig. 43. 



Green fruit-vvoriu 

 antennata (X If). 



moth, X. 



and burrow into the soil beneath the trees to a depth of from 



one to three inches. Here they roll and twist their bodies 



about until a smooth 



earthen cell is formed . 



Most of them then 



spin about th(^m- 



selves a very thin 



silken cocoon ; some 



spin no cocoon. Soon 



after building the 



cocoon or earthen 



cell the caterpillar 



transforms to a dark 



brown pupa (Fig. 42). In about three months, or about the 



middle of September, the moths (Fig. 43) emerge and go into 



hibernation in sheltered nooks ; some of the ])upse, however, 



do not transform till early the following spring. The moths 

 appear on the trees in March or April, and 

 deposit their nearly globular, distinctly 

 ridged, yellowish eggs singly on the bark 

 of the smaller branches (Fig. 44). 

 Means of control. 



As the green fruit-worms are about half 

 grown when they begin feeding on the fruit 

 it is then a very difficult matter to kill 

 them with a poison spray. Earlier, when 

 feeding on the buds and newly opened leaves, 

 many of the young worms could doubtless 

 be destroyed by a thorough application of 

 5. or 6 pounds in 100 gallons of water 



'f'W' 



m 



FiCx. 44. — Green 

 fruit-worm egg on 

 apple twig, greatly 

 enlarged. 



arsenate of lead, 



or dilute lime-sulfur solution. 



Reference 

 Cornell Agr. Exp. Sta. Bull. 123. 189G. 



