330 AGRICULTURE. 



able portion of the leaf, but they cut it in two, 

 so that the end falls to the ground ; in this way 

 the damage is doubled (Fig. 119). To this is 

 also added the injury done to the foliage by 

 binding up the leaves (Fig. 118) for the attach- 

 ment and the protection of the cocoon. 



FIG. I2O. CODLING-MOTH. 



a Injured apple. b Place where egg is laid. 



e I.arva. d Pupa, i Cocoon g, ./Moth. 



h Head of larva. 



(After Riley.) 



They may be destroyed by spraying the foli- 

 age, at the first appearance of the caterpillar, 

 with arsenate of lead or Paris green. Both 

 the forest and the apple tent-caterpillars often 

 drop to the ground, and they may be prevented 

 from crawling back up the trunk by banding the 

 base of the tree, with a strip of cotton or of 

 "tanglefoot" fly-paper. This should be closely 



