22 HOKTICULTUBIST'S RULE-BOOK. 



hand over the stalks from bottom to top, crushing all the 

 eggs; repeating two or three times during the season will 

 keep them in check. Arsenites, after the marketing season 

 has passed. 



Aster. ASTER- WORM. A small larva boring in the stem of 

 garden asters about the time they begin to flower, causing 

 the heads to droop. 



All infested stalks should be burned. 



Bean. BE AN- WEEVIL or BEAN-BUG (Bruchus obtectus, Say). 

 Closely resembles the pea- weevil, which see for descrip- 

 tion and remedies. 



Bag-Worm or Basket- Worm ( Thyridopteryx ephemerceformis, 

 Haw.). Larva working in singular dependent bags, and 

 feeding upon many kinds of trees, both evergreen and de- 

 ciduous. In winter the bags, empty or containing eggs, 

 are conspicuous, hanging from the branches. 



Remedies. Hand-picking. Arsenites. 

 Bark-Lice. See under APHIDES. 

 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 

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

 black markings, feeding upon the heads ; two broods. 



Remedies. Pyrethrum mixed with, flour, or in water 

 decoction. Hot water (temperature from 140 to 160), 

 applied forcibly in a fine spray. Kerosene emulsion. Lye 

 wash. Arsenites : 1 ounce Paris green or London purple 

 to 6 pounds flour, applied while the plant is wet ; should 

 not be used after the plant begins to head. Salt water 

 sprinkled into the head. Pyrethrum, dry or in decoction. 

 FLEA-BEETLE. See FLEA-BEETLE, under F. 

 GREEN LETTUCE- WORM. See under LETTUCE. 



