Evaluation of the Bell 205A-1 turbojet helicopter and spray system for forest application of insecticide
By: by Richard D. Orchard ... [et al.].
Contributors: Orchard, Richard D.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW -- 224.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1974
Place of publication: Portland, Or
Language: eng
Number of pages: 23
Subjects: Aerial spraying and dusting in forestry -- Northwest, Pacific.; Insecticides -- Equipment and supplies.; Helicopters.
Notes: Cover title.

"April 1974."

"GPO 990-424"--P. [4] of cover.

Includes bibliographical references (p. 22).