The 1977 spruce budworm situation in Ontario
Subtitle: part A: damage and forecasts, part B: aerial spraying operations
By: G.M. Howse and A.A. Harnden.
Contributors: Harnden, A. A.; Great Lakes Forest Research Centre.
Series: Report O-X (Great Lakes Forest Research Centre) -- 280
Publisher: Great Lakes Forest Research Centre
Published: 1978
Place of publication: Sault Ste. Marie, Ont
Language: eng
Number of pages: 72
Subjects: Spruce budworm -- Control -- Ontario.; Trees -- Diseases and pests -- Control -- Ontario.
Notes: Abstract also in French.

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