230 ECONOMIC ENTOMOLOGY 



out of young fruit. Injured fruit falls or is deformed. The leaves are 

 also badly injured. Full grown in three weeks; about i inch long; 

 light green; head, thoracic shield and legs brown to black. 



Pupa. — Formed within a rolled leaf, brownish; duration about 10 

 days. 



Control. — Spray with lime-sulphur (32°) and lead arsenate (3 lb. to 

 100 gal. water) about May 15, June i and June 15; use Scalecide 

 (i to 15) just before leaf-buds burst to destroy the eggs. 



Cherry Tree Tortrix {Caccecia cerasivorana Fitch). — A pest of 

 cultivated and choke cherries. 



Adult. — A tortricid moth, expanding about an inch; front wings 

 ochreous yellow with irregular brownish spots and many transverse 

 pale blue bands. July-August. 



Eggs. — ^Laid in flat gluey-covered masses on twigs mainly near the 

 ground; hibernate; hatch in spring. 



Larvce. — Lemon-yellow, ^^ inch long; colony forms nest enclosed 

 in silk web. Mature in July. 



PupcB. — Formed within the dirty ugly nest. Duration 10 to 14 

 days. Pupal skms project from nest. 



Control. — Cut out and burn the nests before the moths emerge. 



Oblique Banded Leaf Roller {Caccecia rosaceana Harris) .■ — Injurious 

 to leaves and buds of orchard trees and small fruits; widely distributed. 



Adult. — A yellowish-brown tortricid moth with three oblique 

 dark bands across the fore wings; bell-shaped with wings folded; hind 

 wings pale yellow. End of June. 



Eggs.- — ^Laid in flat patches on the bark where they winter. 



Larvce. — Roll up and fasten together the young leaves within which 

 they feed; ^ inch long; yellowish-green; head and thoracic shield brown- 

 ish-black; two broods, one feeding in May-June, the other in July- 

 August. 



Pupa. — A dark brown object formed in its silken shelter in folded 

 leaves. 



Control. — Spray with arsenate of lead in early spring and July. 



Caccecia scmiferana occurs on apple. 



The Large Aspen Tortrix {Caccecia conflictana Walk.) occurred in 

 destructive numbers in Manitoba in 19 16— 17 on aspen poplars, although 

 it is usually a rare insect. According to Criddle the adult emerges in 

 July and lays flat masses of eggs on the leaves. The caterpillars eat 



