54 



HALF HOURS WITH DSTSECTS. 



[Packard. 



net mounted on a wire ring a foot in diameter, and attached 

 to a short pole. Affected cabbage heads should be carefully 

 examined, and if mvich infested by worms, be burnt, for if 

 they are suffered to lie about the garden after being pulled 

 up, the caterpillars will attack the other plants. 



A correspondent of the "American Agriculturist" for 

 November, 1S70, states that "it is estimated that the loss 

 from this insect will, in the vicinity of New York [cit}^] 

 Fig. 41. Tig. 43. 



Imported Cabbage Butterfly, male. 

 Fig. 42. 



Imported Cabbage Butterfly, female. Caterpillar and Chrys.ilis. 



alone, exceed half a million of dollars ; and already the price 

 of cabbages has advanced." He says that Mr. Quinn, the 

 owner of a large plantation, "has found carbolic powder, 

 superphosphate and lime together, to destroy them. The 

 carbolic powder appears to be sawdust impregnated with car- 

 bolic acid. Salt has been recommended, but Mr. Quinn did 

 not find dry salt efficacious, though lime has been reported 

 by others as useful." 



22 



