SMALL WORMS DEVELOPING WITHIN THE FRUIT 341 



Control measures are the same as those recommended for the codhng 

 moth : thorough spraying with arsenate of lead just after the petals 

 fall, and again the first of August. 



Fig. 535. 



■Adult of the Lesser Apple Worm, 

 and natural size. Original. 



Enlarged 



The Grape Berry Moth {Polychrosis viteana Clem.) 



Most " wormy " grapes, so often seen on vines, exhibit the charac- 

 teristic work of the grape berry moth. While the berry is still green, 

 a purpUsh spot appears on one side. If it is cut open, a small 

 greenish or purplish caterpillar will be found within. 



This is the larva of the sec- 

 ond brood. Earlier in the sea^ 

 son, when the grapes are in 

 blossom or the berries are just 

 forming, the inconspicuous first 

 brood of caterpillars is on the 

 vines, eating into the blossoms 

 and tiny frilit, and webbing up 

 the clusters. 



The insect overwinters as a 

 pupa in a little cell made by 



Fig. 536. — Section through grape, show- 

 ing larva and work of the Grape Berry 

 Moth. Original. 



