iI SPRAYING PEACHES. 
to the fact that the fruit of the late-maturing varieties is exposed to 
infection over a longer period and the opportunity for the develop- 
ment of the disease is greater. Of the commercial varieties, the 
Heath is perhaps the most susceptible; in fact, the disease has almost 
prohibited the growing of this variety except in a small way. The 
Bilyeu variety is also badly affected and the disease has restricted 
its culture to high, well-drained locations. The Salway, Smock, 
and most of the other varieties that ripen after the Elberta usually 
Fic. 4.—Deformed ripe peaches resulting irom feeding and egg-laying punctures. 
suffer rather severely from this disease, while the Elberta may be 
considered somewhat less affected, although the crop of this variety 
often becomes badly diseased. The varieties that ripen earlier than 
Elberta are as a rule only slightly or moderately affected. This is 
especially true of the Carman, Hiley, Champion, and Belle. On the 
other hand, the Mountain Rose and Early Rivers are quite suscepti- 
ble to the disease. 
TREATMENT. 
The development of the self-boiled lime-sulphur mixture as a fungi- 
cide has made possible the control of the scab without injury to the 
fruit or foliage. The injury produced by this disease may be almost 
440 
