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A pilot project evaluating trichlorfon and acephate for managing the western spruce budworm, Choristoneura occidentalis Freeman, Helena National Forest, Montana, 1976

Creator:

Flavell, Thomas H., Tunnock, Scott, Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

A pilot project to evaluate trichlorfon and acephate for suppressing western spruce budworm populations was conducted on the Helena National Forest, Montana. Both insecticides were applied at 1 pound active ingredient per acre. Application was made with a Bell 205A helicopter using eight Beecomist Model 350 spray heads. Treatments and...

Resource Type:

Technical Report