INSECT ENEMIES OF THE GRAPE. 211 



Northern States, and the young grubs feed upon the 

 pulp, causing the grapes to turn brown, as though struck 

 with disease. The grubs are of a whitish color, and 

 about one-fourth of an inch long when fully grown. 

 These grubs leave the fruit the last of July and bury 

 themselves in the ground, here changing to pupae within 

 a small, smooth, earthy cell, and in September the 

 beetles issue and probably hibernate in this stage during 

 the following winter months. I am unable to suggest 

 any better way to destroy these pests than to gather and 

 burn the infested fruit. 



Grape-cane Curculio (Ampeloglypter Sesostris). 

 This is even smaller than the grape weevil, with a 

 longer snout and a much nar- 

 rower body ; the prothorax of 

 a brown color, and elytra (wing 

 covers) black and slightly 

 punctured. This little pest 

 does not attack the berries, 

 but it does the young, tender 

 shoots and canes, causing galls 

 upon them, the larvae, or grubs, 

 living within these swellings. 

 The remedy is to cut off the 

 gall-bearing canes and burn 

 them as soon as discovered. 

 There are a large number of 

 insects which infest both the 

 wild and cultivated grape, FIG - 81 - 



producing galls on either the leaves or growing canes, 

 but the remedy is the same for all, i. e., gather and burn 

 the galls before mature or the insects have escaped. 



Grape-root Borer (Prionus laticollis). There 

 are, at least, a half dozen species of the Prionidce, the 

 larvae of which are occasionally found bwing in the roots 

 and sterns of large and old grapevines. In the Eastern 



