343 



These small yellowish leaf-hoppers, erroneously called "thrips" 



Leaf -hopper, suck the sap from the underside of the leaves causing them to 



turn brown and dry up. Spray the underside of the leaves very 



thoroughly with whale-oil soap, i lb. in lo gals, of water, about July ist, to kill 



the young leaf-hoppers. Repeat the application in a week or ten days. Cornell 



Bulletin 215. 



The ungainly, long-legged, grayish beetles occur in sandy regions 

 Rose-chafer ^'^^ °^*^" swarm into vineyards and destroy the blossoms and 

 • foliage. Spray thoroughly with arsenate of lead, 10 lbs. iri 

 100 gals, of water. Repeat the. application if necessary. 



RASPBERRY, BLACKBERRY AND DEWBERRY. 



The greenish, spiny larvae 

 Saw-fly. feed on the tender leaves in 



spring. Spray with Paris 

 green or arsenate of lead, or apply hellebore. 



The larva is a grub that bur- 

 Cane-borer. rows down through the canes 



causing them to die. In lay- 

 ing her eggs, the adult beetle girdles the tip of 

 the cane with a ring of punctures causing it 

 to wither and droop. In midsummer cut off 

 and destroy the drooping tips. 



CURRANT AND GOOSEBERRY. 



In the spring the small green. 

 Currant-worm, black-spotted larvae (Fig. 156) 



feed on the foliage, beginning 

 their work on the lower leaves. A second 

 brood occurs in early summer. When worms first 

 appear, spray with i lb. Paris green or 4 lbs. 

 arsenate of lead in 100 gals, of water. Ordi- 

 narily the poison should be combined with Bor- 

 deaux. See CURRANT LEAF-SPOT. After fruit is Fig. 157. 

 half grown use hellebore. 



ROSE. 



The green plant-lice (Fig. 157) usually work on the buds, and the 



Aphis and yellow leaf -hoppers feed on the leaves. Spray, whenever neces- 



leaf-hopper. sary, with kerosene emulsion, 



diluted with 6 parts of water, 



or whale-oil or any good soajJ, i lb. in 3 or 6 gals. 



of water. 



Rose-chafer. See under GRAPE. 



Rose-slug. See under pear slug. 



STRAWBERRY. 



These large curved white grubs 

 White grubs. (Pig. 158) are the larvae of 



the common June beetles. pig. jjg, WUU irub. 



Rose aphis or plant- 

 louse. 



