PESTS OF THE HOP CROP. 



133 



THE ZEBRA CATERPILLAR (Mamestra picta, Harr.) 



This well-known and polyphagic insect is found 

 frequently upon hops. It occurs from Canada south to 

 Virginia, and west to Nebraska, and has evidently of 

 late years been carried into. California. It feeds upon 

 blackberry, poke weed, lamb's quarter, goose foot, 



FIG. 66. COMMA BUTTERFLY. 



a, Eggs; 6, larva; c, chrysalis; d, adult. All natural size except a, which is en 

 larged. (Author's illustration.) 



worm seed, cabbage, aster, honeysuckle, white berry, 

 mignonette, asparagus, ruta-baga, beet, cauliflower, 

 spinach, bean, pea and" celery, and is thus a common gar- 

 den pest. The eggs of this insect are deposited on the 

 lower sides of the leaves in clusters of from 250 to 300. 



