Bui. 1225. U. S. Deot. 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. 
