Spruce Budworm Larvae Sever Stems of Western Larch Shoots in Montana
Spruce budworm larvae are severing stems of terminal and lateral shoots of young western latch in some western Montana forests. Rapid juvenile height growth and excellent form--two highly desirable characteristics of larch--are jeopardized. Severance of terminal shoots is producing trees with multiple leaders and crooked boles. Severance of lateral shoots is less common and less serious. The long-range impact of this budworm damage on larch regeneration is being studied.
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Document Type: Journal Article
Affiliations: Associate Silviculturist, Intermountain Forest and Range Expt. Sta., Forest Service U. S. Dept. Agric., Ogden, Utah, Headquartered at Missoula, Mont.
Publication date: 1967-04-01
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