122 



UAKOJEMAG FOB THE SOUTH. 



destructive to the plant. They resemble in many respects 

 the first described, differing in coloring and size, and the 

 same remedies are applicable. 



Cabbage Louse (Aphis brasslcae. Linn.). — A green plant 

 louse, occurring on the under surface of the leaves, and, 



F. Dctmers. del. 



Fig. 24 — Aphis brassicae. a, Winged male, magnified. 

 b, Head and antenna of same, more magnified, c, 

 Viviparous female, magnified, d, Head and antenna 

 of same, more magnified. Insect Life, Vol. Ill, Div. 

 Ent. U. S. Dept. Agri. 



when in large numbers, seriously injuring the plant by 

 sucking its juices, causing the leaves to wither and die. 



Plants Injured. — Cabbage, cauliflower, and similar 

 plants. 



Remedies. — Pyrethrum powder mixed in water and 

 sprayed on the plants will generally destroy these insects. 



