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A Budworm Vigor-Resistance Classification for Spruce and Balsam Fir

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A spruce budworm epidemic again threatens the spruce-fir pulpwood forests of the Northeast. One defense against this insect is through silviculture. The author suggests selective-cutting methods to make spruce-fir stands more resistant, and offers a tree-classification system as a guide for selecting trees to cut or retain.

Document Type: Journal Article

Affiliations: Principal Silviculturist, Northeastern Forest Experiment Station, Forest Service, U. S. Dept. Agric., Upper Darby, Pa.

Publication date: January 1, 1954

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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