An evaluation of day and night aerial Bt applications for cankerworm control in Siberian elm shelterbelts
By: John Hard ... [et al.]
Contributors: Hard, John S
Publisher: Dept. of Agriculture, Forest Service, Northern Region, State and Private Forestry
Published: 1979
Place of publication: [Missoula, Mont.]
Language: eng
Number of pages: 20
Subjects: Aerial spraying and dusting in agriculture -- North Dakota; Canker-worms; Siberian elm -- Diseases and pests
Notes: Bibliography: p. 20