Frost reduces western spruce budworm pop
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David G. Fellin; Wyman C. Schmidt
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Article
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1973
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Elsevier Science
β 411 KB
Fellin, D. G. and Schmidt, W. C., 1973. Frost reduces western spruce budworm populations and damage in Montana. Agrie. Meteorol, 11 : 277 283 Unseasonal temperatures, as low as -6Β°C, were recorded in western Montana in mid-June 1969, a period when western spruce budworm (Choristoneura oeeidentalis