Parasites and predators of forest insects liberated in the United States through 1960
By: by Philip B. Dowden.
Series: Agriculture handbook / U.S. Department of Agriculture -- no. 226; Agriculture handbook (United States. Dept. of Agriculture) -- no. 226.
Publisher: U.S. Dept. of Agriculture, Forest Service; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1962
Place of publication: Washington, D.C
Language: eng
Number of pages: 70
Subjects: Forest insects -- Biological control -- United States; Insect pests -- Biological control -- United States; Forest insects -- Parasites -- United States; Insect pests -- Parasites -- United States; Predatory insects -- United States; Animal introduction -- United States
Notes: "July 1962."

Includes indexes.