INJURING THE LEAVES. 



193 



The Cabbage Plusia. 



Plusia brassica . 

 This insect, illustrated in its three later stages at 

 Fig. 102, has been known for years to do serious in- 

 jury to a number of garden crops. While it is espe- 

 cially injurious to cabbage, it also attacks celery. 

 turnip, tomato, clover, cauliflower, lettuce, dandelion, 

 dock, and several other plants. The adult (shown at 

 upper part of Fig. 102) is a handsome, dark-grey 

 moth, with a silvery spot near the middle of each 

 front wing. The females deposit their pale, greenish- 

 yellow eggs, singly or in clusters, on the cabbage 



Fig. 102. Cabbage Plusia : a, larva ; 6, pupa in cocoon ; c, moth. 



leaves, usually on the upper surface. The larvee 

 soon hatch and devour the leaves as they develop, 

 boring small, irregular holes in the cabbage head. 

 12 



