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Filtering by: Subject Abies lasiocarpa -- Diseases and pests -- Montana -- Big Belt Mountains

Evaluation of mountain pine beetle infestations, Big Belt Mountains, Townsend District, Helena National Forest--1973

Creator:

United States. Forest Service. Northern Region. State & Private Forestry, McGregor, Mark D., and Meyer, Hubert E.

Abstract:

Mountain pine beetle, Dendroctonus ponderosas Hopk., reached near epidemic levels in lodgepole pine stands in the Sulphur Creek-Black Butte area. Lodgepole pine are probably more susceptible due to the overstocked conditions of stands, and high incidence of girdling of the base of trees by porcupines. The infestation in this area...

Resource Type:

Technical Report

Full Text:

and Black Butte Gulch in the Big Belt Mountains about 18 miles east of Townsend, Montana, in 1973 (Fig