Field test of acephate against two Douglas-fir Christmas tree pests
By: by Russel G. Mitchell and John Neisess
Contributors: Neisess, John; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW -- 302; USDA Forest Service research note PNW -- 302.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1977
Place of publication: Portland, Or
Language: eng
Subjects: Control; Contarinia; Christmas trees; Diseases and pests; Insecticides; Douglas fir; Research
Notes: Caption title.

"October 1977."

Includes bibliographical references (p. 7).