20 Farmers’ Bulletin 1220. 
of the folded leaves are noticed. An additional application in a 
week or 10 days is desirable in case the insect has been seriously. 
troublesome during preceding years. In small plantings it will be 
practicable to destroy the larve by crushing them within the folded 
leaf by hand. 
THE ROSE-CHAFER.* 
About the time of blooming of grape in the spring the rose-chafer 
may suddenly put in an appearance, often in enormous numbers, the 
long, spiny-legged, awkward, brown beetles (fig. 20) literally cov- 
ering the plants, feeding at first on the blossoms, but later attacking 
the young fruit and foliage, the leaves being eaten bare except the 
iG. 19.—Grape leaf-folder moth. Enlarged. 
larger veins (fig. 21). Injury to the young grapes often results in 
their cracking as they grow, the seeds sometimes protruding. This 
insect is a very general feeder, attacking practically all fruits, such 
as the apple, plum, cherry, peach, and many ornamentals like Spira, 
Deutzia, and roses. On this last-mentioned plant it is especially 
severe when abundant, and hence the common name of rose-chafer. 
After three or four weeks of feeding the beetles may disappear as 
quickly as they came. 
This pest is widely distributed and occurs from Canada and Maine 
south to Virginia and Tennessee, and west to Oklahoma and Colo- 
rado. Light, sandy soils are favorable breeding grounds for the 
insect and vineyards in regions of clay soils are usually not seriously 
troubled by it. 
8 Macrodactylus subspinosus Fab. 
