Jul. 243, U. S. Dept. of Agriculture. 



Plate I. 



Figs. 1 and 2.— Sugar-Pine Seed Trees on Burned Area Near Colestin, Oreg. 



Photographs were made in July, 1914. The area was burned in 1910, destroying all young 

 growth and much of the mature timber. Although the trees have put on several good 

 crops since that date, there are scarcely any sugar-pine seedlings on the area. The seed 

 crops have been repeatedly attacked by the sugar-pine cone beetle. (Original.) 



Fig. 3.— Cones on Ground Under Seed Trees. 



The large opened cones are normal. The small cones have been killed by the cone beetle. 



(Original.) 



WORK OF CONE BEETLES IN THE CONES OF SUGAR PINE, 



