250 



PESTS OF ORCHARD AND SMALL FRUITS 



The Apple Twig-borer 



{Schistoceros hamatus Fab.) 



In early summer the twigs of apple, 

 cherry, or pear, or the canes of grape 

 may show characteristic little tunnels, 

 beginning just above a shoot or bud, 

 and extending down a short distance 

 in the main stem or branch. They 

 are the work of a small, dark brown 

 beetle, about one third of an inch in 

 length, which soon deserts its temporary 

 burrow and is not likely to be seen. 



The insect breeds in diseased wood, 

 hibernating within the same. It is 

 troublesome in the neighborhood of 

 Fig. 333. —Work of the Apple piles of recent trimmings and the like, 

 Twig-borer. Original. and these should be removed and de- 



stroyed. The tunnels in the twigs of fruit trees are made apparently 

 in feeding, or for temporary shelter. 



Fig. 334. — The Apple Twig-borer, enlarged and natural size. Originai. 



The Twig-girdler {Oncideres cingulata Say) 



Pecan trees and others are injured by a dark gray beetle half an inch 

 long, which girdles twigs or smaller branches. A clean cut is made 



