96 



INSECTS INJURIOUS TO THE APPLE 



tip of expanded wings, is reddish, with two bright grayish spots 

 on the front margin of each fore-wing. The insect is single brooded. 



Control. Miscible oils (one to fifteen gallons of water) sprayed 

 once on trees in early spring, when the temperature is above 

 freezing, will destroy the eggs. Two or more later sprayings of 

 arsenate of lead (six pounds to 100 gallons of water), or of lime- 

 sulfur solution, as directed for codling moth, and also directed 

 against the latter insect, would be effective. 



The Oblique-banded Leaf Roller (Archips rosaceana Harr.). 

 This small green or reddish caterpillar, three-fourths of an inch 



FIG. 119. Appl 



deformed by leaf-rollers. 

 Bull., 307.) 



(Herrick and Leiby, Cornell 



long, rolls up the leaves of the apple and lives and feeds inside. 

 The adult is a bnyvvnish moth which emerges from the pupal 

 form within the rolled leaves (Fig. 120). It is believed that the 

 winter is passed in the egg stage the eggs hatching in spring, with 

 perhaps a second brood during the summer. The eggs are laid in 

 clusters on the bark and are green in color. About one hundred 

 and twenty eggs are laid by one female. 



Control. Lime-sulfur at the strength used for scale in the 

 dormant spraying will prevent eggs from hatching. Trees may be 

 sprayed also with arsenate of lead, three pounds to fifty gallons 

 of water, when buds are swelling and again before the flower buds 



