CONTROL OF INSECTS L\. Minors TO TTIK CrRArE 1309 



TI! K <;i{Al'K-l!Ki:UY MOT 1 1 



Grape clusters are often found having- a number of berries in- 

 jured by a dark-colored caterpillar. Such grapes are designated 

 by the growers as "wormy." This caterpillar is the larva of the 

 grape-berry moth (Polyclirosis viteana 'Clemens). 



Fi<;. 44!). INJURY TO FRUIT BY LARVAE OF GRAPE-BERRY MOTH, 

 SHOWING CLUSTER AS TAKEN FROM VINE. XOTE UNSIGHTLY 

 CONDITION 



Part of the injury is caused by the caterpillars of the first 

 brood, which feed on the stems and external portions of the young 

 berries, but the greatest damage is due to the feeding on the inside 



