Insects Ixh-rious to the P'^riit of thi-: Apple 



19' 



Fig. 125. 



Green fruit-worms feeding on young 

 apples 



the caterpillars are half grown, and they soon turn their attention to 



the young apples. They begin feeding on the side of the apple and eat 



out large rather shallow cavi- 

 ties, often continuing their 



work until nearly half the 



fruit is devoured (Fig. 125). 



If the portion injured is not 



too large, the wound heals 



over, leaving a large, corky 



scar, and the apple matures. 



The scars made by the green 



fruit-wonn are similar to 



those caused by the fruit-tree 



leaf -roller iDut, as a rule, are 



not so deep, although in 



many cases it is impossible 



to determine from the 



mature fruit which insect was 



responsible for the injury. 

 Green fruit-worms work on 



the fruit chiefly during May 



though some continue feeding until nearly the middle of June. When 



full-grown they range from an inch to an inch and a half in length and 

 are light yellowish or apple green in color. A narrow 

 cream-colored stripe extends down the middle of the 

 back and a wide cream-colored stripe along each side 

 with many similarly colored mottlings or spots, which 

 sometimes fojTn quite distinct stripes along the body 

 above the broad lateral stripes. 



By the first week in June most of the caterpillars 

 have attained their full growth. They then burrow 

 into the soil beneath the trees to a depth of from one to 

 three inches where they roll and twist their bodies 

 about until a smooth earthen cell is formed. Most 

 of them then spin about themselves a thin silken 

 cocoon; others spin no cocoon. 



Soon after entering the ground the caterpillars trans- 

 form within the cocoon or earthen cell to dark brown 

 pupae (Fig. 126). At the end of three months, or 

 about the middle of September, most of the moths 



emerge and go into hibernation. Some of the pupge, however, remain 



in the ground and do not trangifomi into moths until the following spring, 



Fig. 126. — 

 Pupa of green 

 fruit-worm, 

 enlarged 



