276 



PESTS OF ORCHARD AND SMALL FRUITS 



Fig. 394.— The Eight-spotted Forester. 

 Slightly enlarged. Original. 



merit, and on each side of the 

 body is a wav}^ white longi- 

 tudinal band, faint on the 

 segments toward the head, 

 but prominent toward the 

 hind end. The adult moth 

 is black, marked with eight 

 large spots. The readiest 

 means of control is to apply 

 arsenate of lead or Paris green 

 to the foliage. 



The Grape-leaf Skeletonizer ( Harrisina americana Guer-Men.) 



Orderly rows of small, yellowish, black-spotted caterpillars feed on 



the surface of grape leaves, devouring the surface tissue, but leaving 



the veins untouched. Later, when more nearly full grown, the larvae 



separate and work singly, eating all of the leaf except the main ribs. 



?m 



.^"X. 



Fig. 395. — Larva of the Grape-leaf 

 Skeletonizer. Original. 



The mature caterpillar is a half 

 inch long. 



The parent moth emerges in 

 June, and lays eggs on the under 

 side of grape leaves. Larvae 



hatched from these eggs complete their growth in a month to six 

 weeks, and a second generation of moths come out in July or August, 

 followed by a second lot of caterpillars. The insect passes the win- 

 ter in the pupal stage in dead leaves or rubbish. 



Fig. 396. —Adult of the Grape-leaf Skele- 

 tonizer, enlarged to three times natural 

 size. Original. 



