260 PESTS OF ORCHARD AND SMALL FRUITS 
Spraying with lime sulphur in winter, as for San José scale, will 
control this pest. 
The Rose Scale (Aulacaspis rose Bouché) 
Roses, blackberries, and raspberries frequently become infested with 
white scales which cover the canes. The individual scales, when full 
grown, are about one tenth of an inch long, thin, flat, and snowy white. 
f 
) 
Fic. 355.—Cottony 
Maple-scale. Orig- 
inal. 
There may be three or more generations in a year. 
Judicious pruning will help to hold them in 
check. Lime sulphur may be used as a winter 
spray. Or, spray in winter with whale-oil soap, 
1 pound to 1 gallon of water. 
The Cottony Maple-scale (Pulrinaria vitis Linn.) 
This large and easily recognized scale attacks 
grape vines and various fruit and shade trees. 
It is conspicuous in early spring, when the fluffy, 
cottony secretion containing the eggs is pushed 
out from under the body of the female. There 
is one generation annually, the female over- 
wintering on the bark. 
The means of control is to spray with 10 per 
cent kerosene emulsion when the young are 
hatching in the spring. 
The European Fruit Lecanium 
(Lecanium corni Bouché) 
The smaller limbs and twigs of fruit trees are 
attacked by a species of large scale, one eighth 
of an inch long and nearly hemispherical. When 
young, it is yellowish, but when older, is dark 
and shiny. The upper surface of the insect is hardened, thus pro- 
tecting the softer parts beneath; in other words, the scaly covering 
