62 



INJURIOUS INSECTS OF KANSAS. 



pates. The moth soon emerges and lays eggs for another genera- 

 tion. The larvse are to be noticed especially in August and Sep- 

 tember. 



Remedies. — The same remedies recommended for the Imported 

 Cabbage-worms are applicable to the Cabbage Plusia. 



Kansas Notes. — ^This pest at times does much damage to cab- 

 bages in Douglas county. 



PEA WEEVIL. 

 {Bruchus pisi Linn.; Order, Coleoptera.) 



Diagnosis. — Many small, grayish, snouted beetles (the adult 

 weevils) among stored peas in winter and spring; many of the 

 peas with small, circular holes. The weeviled peas will float in 

 water. 



Description and Life-history. — The adult is a beetle about one- 

 fifth of an inch long; general color rusty or grayish-black, with 



a small, white spot on the tho- 

 rax. The eggs are laid on the 

 green, young pea pods in the 

 summer. The eggs are small, 

 fusiform, and yellow. The 

 grubs on hatching bore 

 through the pod into the peas. 

 The hole made in the growing 

 pea soon closes up, leaving the 

 voracious larva within. If the 

 pea is used for food the larva 

 comes to an untimely end, be- 

 ing fairly " in the soup," so to 

 speak. If the peas are allowed to ripen and put away for seed, the 

 larva continues its eating until there is only a shell left of the pea. 

 Weeviled peas are unfit for food, and, as proved by the experi- 

 ments of Professor Popenoe, should not be used for seed. During 

 the fall and winter the larva? pupate and finally mature as weevils 

 (the adult beetles). Some of the beetles emerge from the pea,«, 

 while others remain in them until they are planted. 



Fig. 33. Pea Weevil: a, adult; b, infested 

 pea. Enlarged. 



