INJURIOUS INSECTS 



337 



beetle is closely related to the above in style and habits, though 

 not in color. Eats the buds from the grapes in early spring, 

 and the grubs destroy the foliage later. I have found that the 

 arsenites and kerosene used as already described are both 

 entirely satisfactory in destroying this enemy of the grape. 



Other Cabbage Moths. I might speak of the larvae of 

 various moths which feed on the leaves of the cabbage ; but for 

 lack of space I will only say that pyrethrum will destroy all 

 or nearly all. Should it fail, kerosene or hand picking should 

 be tried. 



Cabbage Fly. So, too, I might discuss the cabbage mag- 

 got (Anthomyia Irassicce, 

 Bouche) ; but this, as also 

 the onion maggot (Anthomyia 

 ccparum, see Fig. 16), both 

 of which are in our State, 

 are so similar to the radish 

 fly and maggot {Anthomyia 

 raphani) that what I shall _ 



* FIG. 16. a. larva, natural size. ft. Same magnified. 



Say as to the natural history c - lmugo - *be lines beuealh show the natural 8iz e- 



and habits of that species will apply to both of the others. 



Aside from the carbolic acid remedy recommended in fighting 

 the radish maggot, I have found bisulphide of carbon a certain 

 destroyer of the cabbage maggot, which has done serious damage 

 in this vicinity. By use of a cane I made a hole in the earth 

 close beside the cabbage two or three inches deep, in which I 

 turned a half teaspoonful of the explosive, and quickly filled 



the hole with earth, which was 

 firmly pressed down by stepping 

 on it. The vapor spreads and kills 

 the maggots at once. 



Rape Butterfly. Pieris rapce, 

 S c h r a n k . Family, Papilionidce. 

 Fl 17 Order, Lepidoptera. This insect, so 



recently imported, is now widely extended in our country, and a 

 most serious pest. 



DESCRIPTION. This butterfly is white, spotted with black, 



22 



