Evaluation of the Boeing-Vertol 197 helicopter and spray system for forest application of insecticide
By: by Richard D. Orchard and George P. Markin.
Contributors: Markin, George P.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW ; 264; USDA Forest Service research note PNW -- 264.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1975
Place of publication: Portland, Oreg
Language: eng
Number of pages: 12
Subjects: Aerial spraying and dusting in agriculture -- Oregon.; Aerial spraying and dusting in agriculture -- Washington (State).; Aerial spraying and dusting in agriculture -- Idaho.; Insecticides -- Equipment and supplies.
Notes: Bibliography: p. 12.