CnERRY INSECTS 



313 



mature, nearly circular, dark grayish female scales (Fig. 272) 

 are indistinguishable from Putnam's scale or the European fruit- 

 scale, but the reddish-orange, nearly central exuvial spot gives 

 it quite a different appearance from the San Jose scale. The 

 cherry scale winters in a half- 

 grown condition in Illinois, and 

 it is apparently both oviparous 

 and ovoviviparous, the youn^ 

 beginning to emerge early in 

 May, and eggs and young oc- 

 curring as late as the middle of 

 June. Two broods are pro- 

 duced annually in Illinois, the 

 young of the second generation 

 appearing in August and Sep- 

 tember. Possibly a third brood 

 occurs farther south. Seven 



minute parasites have been bred from this cherry scale, and 

 the twice-stabbed ladybird beetles and their grubs feed upon it. 

 Thorough applications of the winter washes as recommended 

 for the San Jose scale readily control this scale. 



Fig. 272. — The cherry scale, males and 

 females. Redrawn after Joutel. 



Other Cherry Insects 



Bud-moth : apple, p. 42. 



Fruit-tree leaf-roller : apple, p. 62. 



Oblique-banded leaf-roller : apple, p. 65. 



Leaf-crumpler : apple, p. 68. 



Canker-worm : apple, p. 77. 



California tussock-moth : apple, p. 104. 



Oriental moth : apple, p. 106. 



Forest tent-caterpillar: apple, p. 119. 



Yellow-necked apple caterpillar : apple, p. 123. 



Red-humped apple caterpillar : apple, p. 125. 



Climbing cutworms : apple, p. 138. 



Buffalo tree-hopper : apple, p. 160. 



San Jose scale : apple, p. 162. 



