Insects which kill forest trees
Subtitle: character and extent of their depredations and methods of control
By: A. D. Hopkins
Contributors: United States. Dept. of Agriculture; United States. Bureau of Entomology
Series: Circular / U. S. Dept. of Agriculture. Bureau of Entomology -- no. 125; Circular (United States. Bureau of Entomology) -- no. 125.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1910
Place of publication: Washington, D.C
Language: eng
Subjects: Forest insects; Bark beetles; Spruce bark beetles
Notes: Circular No. 125.

"Issued November 25, 1910."

At head of title:  United States Department of Agriculture, Bureau of Entomology.
Table of contents: title: Control of barkbeetles which kill trees. pp. 3.; title: Maintaining control of barkbeetles. pp. 4.; title: Examples of successful control of barkbeetles; title: Control of the Eastern Spruce beetle; title: Control of the Hickory beetle; title: Control of the Black HIlls beetle. pp. 5.; title: Control of the mountain pine beetle. pp. 8.