New York AGRICULTURAL EXPERIMENT STATION. 435 
cation thorough. Later, when the worms appear on the leaves, 
Paris green may be apphed at the usual strength, one pound to 
150 gallons of lime and water, or combined with Bordeaux mix- 
ture. Both upper and under surfaces of the leaves should be cov- 
ered. 
GRAPE FRUIT WORM. 
(Hudemis botrana Schiff. ) 
Description.— The young caterpillars feed within the grapes 
finally causing them to turn dark colored and to wither. This 
injury is sometimes mistaken for the black rot. ‘After devouring 
the soft parts of one grape the caterpillar goes to another, fasten- 
ing the two together by a silken thread. This may be continued 
until several in a bunch have been destroyed by one caterpillar. 
The young caterpillars are very light green in color with a brown 
head. When full grown they measure about one-fourth of an 
inch in length and are dark olive green in color tinged slightly 
with red. The cocoon is formed on a leaf and is partially com- 
posed of two small pieces cut out of the leaf. The adults emerge 
in about ten days. The fore wings have a bluish tinge and are 
marked with brown, while the posterior wings are dull brown. 
The moths are small, measuring nearly half an inch from tip te 
tip when the wings are spread. ‘The eggs are probably laid late 
in June or early in July. There is probably but one brood an- 
nually in this State. 
T'reatment.—As the caterpillars spend most of their lives within 
the grape berries, spraying will have little or no effect. There 
seems to be no better way than picking and destroying the infested 
fruit and the leaves containing the cocoons. 
GRAPE LEAP HOPPER. 
(Typhlocyba vitifex Fitch.) 
There are several species of leaf hoppers which attack the grape, 
but this species is probably the most common in this State. These 
