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Fruit-Tree Leaf-Roller (a) moth, (b) pupae, (c) larva beginning its nest on an 

 apple leaf, (d) egg patches (after Herrick). 



festation was most severe the trees were completely defoliated and the cater- 

 pillars not having enough food to complete their growth were forced to des- 

 cend to the ground and feed on the clover cover-crop growing in the orchard. 

 In New York the caterpillars became full grown in three weeks. They are 

 then about one inch in length, light green in color with the head, legs and 

 thoracic shield varying from brown to black. When full-grown they trans- 

 form within a rolled leaf into brownish pupae and in about ten days, or early 

 in June, the moths emerge. The front wings are mottled with various shades 

 of brown and yellowish white, and there is considerable variation in the 

 distinctness of the markings in different individuals. The female moth 

 deposits her eggs soon after emergence. In New York most of the eggs are 

 laid before the first of July but they do not hatch until the following spring. 

 There is only one brood annually, about ten months of the year being spent 

 in the egg stage. 



Means of Control. — The fruit-tree leaf-roller has been found a most 

 difficult insect to control. The young caterpillars burrow into the buds 



