310 



FRUIT INSECTS 



Fig. 267. — Egg 

 mass of the eherry- 

 tree tortrix with a 

 moth resting on a 

 cherry branch. 



the end of the body. When the moths emerge, 

 empty pupa cases are left projecting from the 

 nest. The moths (Fig. 266) expand from i to 

 li inches; the front wings are bright ochre- 

 yellow, marked with irregular ])rownish spots 

 and numerous transverse bands of a pale leaden 

 blue. The eggs are deposited 

 in flattened masses on the 

 smaller branches and are pro- 

 tected by a gluey covering 

 (Figs. 267 and 268). 



This insect rarely becomes 

 troublesome on cultivated 

 cherries. The webs should be 

 cut out and burned. 



Reference 



Cornell Agr. Exp. Sta. Bull. 23, yj^^^ 268. — Egg- 

 pp. 113-115. 1890. mass enlarged. 



The Cherry Plant-louse 

 Myzus cerad Fabricius 



This blackish plant-louse very generally infests the cherry 

 both in Europe, in the United States and Canada, east of 

 the Rocky Mountains; it also occurs in ('alifornia. Sweet 

 cherries an^ more liable to injury than the sour varieties; this 

 is sometimes strikingly shown where both kinds are grown to- 

 gether in nurseries (Fig. 271). The sweet cherries may have 

 the leaves badly curled and the new growth stunted, while sour 

 cherries growing in the next row show little or no injury. 



The shining black winter eggs are found attached to the bark 

 of the smaller branches, mostly around the buds. They hatch 

 about the time the buds open, and the stem-mothers found 



