Injurious Insects 21 



Blackberry. CANE- BORER, See under Raspberry. 

 ROOT GALL-FLY. See under Raspberry. 

 SNOWY CRICKET. See under Raspberry. 

 Blister-Beetle (Lytta, two or three species). Soft-shelled, 

 long-necked and slim black or gray spry beetles, feeding 

 upon the leaves of many trees and garden plants 



Remedies. Arsenites. Jarring. 



Cabbage. CABBAGE-WORM, or CABBAGE BUTTERFLY (Pieris 

 rapa, Linn.). Larva an inch long, green with yellow and 

 black markings, feeding upon the heads ; two broods. 



Remedies. Pyrethrum. Hot water (temperature from 

 140 to 160), applied forcibly in a fine spray. Lye wash. 

 GREEN LETTUCE-WORM. See under Lettuce. 

 HARLEQUIN CABBAGE-BUG (Strackia histrionica, Hahn). 

 Bug about a half inch long, gaudily colored with orange 

 dots and stripes over a blue-black ground, feeding upon 

 cabbage ; two to six broods. 



Remedies. Hand-picking. Place blocks about the patch 

 and the bugs will collect under them. In the fall make 

 small piles of rubbish in the patch and burn them at thfe 

 approach of winter. 



MAGGOT (Anthomyia brassiccc, Bouche). A minute white 

 maggot, the larva of a small fly, eating into the crown 

 and roots of young cabbage and cauliflower and turnip 

 plants. 



Remedies. There are no remedies specific for the pest ; 

 the best one can do is to remove the plantation to a new plot, 

 as far away as possible, each year. When the plants are in 

 a hot-bed, maggots can be destroyed by inserting bisulphide 

 of carbon into the soil. Puddle the plants when trans- 

 planting in a puddle to which sulphur has been added, 

 and sprinkle sulphur about the plants after they are set. 

 Liquid manure applied to the plants is said to drive away 

 the insects. All infested plants should be burned. 



The "club-root" of cabbage is not due to the maggot, 

 but to a fungus (which see). 



