Brief information on the pine bark louse or red spruce twig gall-louse and methods of control
By: A. D. Hopkins
Contributors: United States. Bureau of Entomology; United States. Bureau of Entomology and Plant Quarantine
Series: Forest entomology brief -- 20; Forest entomology brief -- 20.
Publisher: U.S. Department of Agriculture, Bureau of Entomology
Published: 1916
Place of publication: Washington, D.C
Language: eng
Subjects: Louse flies; Control; Pine bark; Diseases and pests; Red spruce
Other titles: The pine bark louse or red spruce twig gall-louse and methods of control
Notes: "May 12, 1916."

"E-48."

"(Send K-E.)"