140 



INSECTS INJURIOUS TO VEGETABLES 



bage leaves on which it feeds. It devours the pulp on the lower 

 surface, often leaving the veins intact. 



This species has evidently been decimated in the same man- 

 ner as the southern cabbage butterfly by the foreign invader, 

 Pontia rapcc, and is now seldom found save on wild plants. 



Remedies are the same as for the imported cabbage butterfly. 



The Cross-striped Cabbage Worm {Evcrgcstis rimosalis 

 Guen.). — Thus far have been considered only the "worms" 

 produced by butterflies. The species figured and those which 



I 



I 



Fig. 93.— Cross-striped cabbage worm, a, Moth; b. egg mass; c, sculpture of egg; 

 d "worm '; e, cocoon, a, d, e. Twice natural size, b, c, more enlarged. (Author's 

 illustration, U. S. Dept. Agr.) 



follow are all the progeny of moths. This "worm" injures cab- 

 bage and its varieties in nearly the same manner as does the im- 

 ported cabbage worm, attacking the heads and digging deeply 

 into, and eating out, the hearts. While plants are tender this 

 destroys them for the market or table. This species is as a rule 

 less injurious to other crucifers (fig. 93). 



Remedies. — The remedies advised as best for the imported 

 cabbage worm are equally applicable to this species. 



The Common Cabbage Looper (Autograplia brassier Riley). 

 — Late cabbage particularly southward is much subject to injury 

 by the looper or cabbage "plusia" which is, next to the imported 



