30 



CIRCULAR 2 7 0, U. S. DEPARTMENT OF AGRICULTURE 



and should not be burned. Thorough cultivation late in the fall 

 may be of some benefit, covering the bugs with soil and preventing 



Figure 33. — Pear tree showing effects of severe attack by the tarnished plant 

 bug. Only a few normal fruit buds are left in the top of the tree. 



their escape in the spring. Spring cultivation, on the other hand, 

 may drive the bugs into the trees. Control by means of sprays or 

 with repellent or attractive materials has not been satisfactory. 



