Bui. 1225, U. S. Dept. of Agriculture. 



Plate IV. 



Injury Caused by the Camphor Thrips. 



A, advanced injury from the camphor thrips, showing cracks or lesions in bark; B, camphor 

 trees injured by improper pruning, followed by a heavy infestation of thrips. Several of 

 the branches have been killed. 



