CHAPTER IX 



INSECTS INJURIOUS TO CABBAGE AND 

 OTHER CRUCIFEROUS CROPS 



Cabbage is peculiarly susceptible to insect attack, and there 

 are probably more species of insects that injure it than any other 

 truck crop. Other edible cole plants are attacked by the same 

 species of insects, but as a rule suffer rather less injury. At- 

 tack begins from the. time the seeds commence to sprout and 

 continues in the case of cabbage until the edible product is ready 

 for cooking. 



Fig- 83.— Cdbbags root-maggot, a. Larva; b, puparium, dorsal view; c. female fly; d, head 

 of male; e, antefina- All enlarged. lAfter Riley, U- S. Dept. Agr.) 



ROOT-MAGGOTS 



The Cabbage Maggot (Pcgo)iiya brassiccc Bouche). — The 



roots of cabbage and related cruciferous crop plants frequently 



suffer severe injury from the attack of the cabbage maggot 



(fig. 83). Young plants are most seriously affected, the mag- 



131 



