322 INJURIOUS INSECTS, WITH TREATMENT 



about 2 pounds whale-oil soap to each 50 gallons to make it spread 

 and stick better. Repeat the application in a week or ten days. 

 In houses, tobacco-smoke, pyrethrum poured upon coals held 

 under the vines, syringing with tobacco-water or soap suds. 

 GRASSHOPPERS. See under CORN, p. 314. 



ROSE-CHAFER (Macrodadylus subspinosus) . The ungainly, long- 

 legged, grayish beetles occur in sandy regions, and often swarm 

 into vineyards and destroy the blossoms and foliage. 



Treatment. At the first appearance of the beetles spray with 

 arsenate of lead at the rate of 8 or 10 pounds to 100 gallons of 

 water, to which should be added 1 gallon of molasses. 

 Hollyhock. BUG (Orthotylus delicatus}. A small green bug, attacking 

 the hollyhock with great damage. 



Treatment. Kerosene emulsion. Tobacco extracts. 

 House-plants. See APHIDES, MEALY-BUG, MITES, and RED-SPIDER, 



pp. 301-304. 



Lawns. ANTS (Formica sp.). Insects burrowing in the ground, 

 forming " ant hills." 



Remedy. A tablespoonful of bisulfid of carbon poured into 

 holes six inches deep and a foot apart, the holes being immediately 

 filled up. 



Lettuce. APHIS or GREEN-FLY. A plant-louse on forced lettuce. 

 Preventive. Tobacco-dust applied on the soil and plants as 

 soon as the aphis makes its appearance, or even before. Renew 

 every two or three weeks if necessary. Fumigating with tobacco 

 is the surest remedy. See FUMIGATION, p. 288. 

 CABBAGE-LOOPER (Autographa brassiae). Larva, somewhat over 

 an inch long, pale green, with stripes of a lighter color, feeding 

 on leaves of many plants, as cabbage, celery, and endive. 



Remedies. Pyrethrum diluted with not more than three times 

 its bulk of flour. Kerosene emulsion. Hot water. 

 Melon. MELON-WORM (Diaphania hyalinata). Larva, some over an 

 inch long, yellowish green and slightly hairy, feeding on melon- 

 leaves, and eating holes into melons, cucumbers, and squashes ; 

 two or more broods. 



Remedies. Hellebore. Arsenicals early in the season. 

 SPOTTED CUCUMBER-BEETLE. See under CUCUMBER, p. 318. 

 SQUASH- VINE ROOT-BORER. See under SQUASH, p. 331. 



