336 PESTS OF ORCHARD AND SMALL FRUITS 
Spraying with arsenate of lead or Paris green will readily poison 
the adults because of the long time during which they feed on the grape 
foliage. The poison should be applied 
just after the grapes finish blooming. 
Vineyards that are sprayed regularly with 
arsenicals for other pests, such as the 
grape berry moth, will not find this in- 
sect in evidence. If it is found that 
many berries are infested, these should 
be collected and destroyed. 
The Quince Curculio 
Fie. 522.—The Quince Cur- (Conotrachelus crategi Walsh) 
culio. Enlarged and natural 7 
size. Original. Both the adult and the grub of this 
species injure the fruit of quinces. The 
former eats holes into the fruit, when 
it is still small. The latter burrows 
within the flesh, making wandering 
cavities, and finally eats its way out 
through the skin. Quinces that have 
been punctured by the adult grow 
misshapen. 
The adult curculio is a small, snout 
beetle, one fourth of an inch long, its 
body broadest at the middle and its 
back marked with seven longitudinal 
ridges. Eggs are laid under the skin 
of the young fruit. The grubs enter 
the ground when full grown, and re- 
main there until the following spring. 
The only effective remedy is to jar 
the beetles from the trees in the early 
morning, catching them on sheets and 
destroying them. The application of 
° j ; Fic. 523.— Work of the Straw- 
poison sprays is of no avail. berry Weevil. Original. 
