CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 2 29 



of leaf and lined with silk. Moths emerge in lo to 14 days in early 

 August. The eggs of second generation are laid on the berries, and the 

 larvae feed on the pulp and seeds. Sometimes there is a third generation. 

 Winter is passed in the pupal stage. 



Cow/ro/.— Spray with arsenate of lead, 4 lb., Bordeaux 2:3 : 50, and 

 2 lb. dissolved soft soap just after blooming; in August, when the 

 berries are half-grown, or about 7 weeks after the grapes bloom, use 

 6 lb. arsenate of lead. 



TcRTRiciD^ (Leaf Rollers) 



Fruit Tree Leaf Roller {Cacmcia ar gyros pila Walker).— (Consult 

 Bull. 311, Cornell, Bull. 250, Ont. Dep. Ag.) A serious enemy of the 

 apple east of the Rockies. It attacks also pears and plums, and some 

 shade and forest trees. 



Fig. 141. — Egg-masses of fruit tree leaf roller. FiG. 142. — Fruit tree leaf 



Natural size. {After Caesar.) roller: a, female; b, male. 



Naturaljsize. {After Caesar.) 



Adult. — Front wings mottled with a rusty-brown shade and silvery- 

 white markings; hind wmgs light ashy brown without markings, ^ inch 

 wing expanse. Early July; one brood each year (Fig. 142). 



Eggs. — Attached to upper side of twigs in small oval, flat, greyish 

 varnish-covered patches, about 100 eggs in each egg-mass, in July. 

 Hatch as buds are opening. Hibernate (Fig. 141). 



Larvce. — At first are black-headed and green; tie together the young 

 leaves and blossoms with a silk web, later cut large irregular cavities 



