Observations on the decline of western larch defoliated by larch casebearer in the northern region

Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/1957/3234

Title:	Observations on the decline of western larch defoliated by larch casebearer in the northern region
Issue Date:	16-Oct-2013
Publisher:	Missoula, Mont. : USDA Forest Service, Northern Region, Division of State and Private Forestry
Description:	Numerous stands of western larch, Larix occidentalis, on the St. Joe, Coeur d'Alene, and Kaniksu National Forests, Idaho, show signs of gradual deterioration following repeated defoliation by larch casebearer, Coleophora Zaricella Hbn. (Tunnock et al. 1969). Stand deterioration can occur after 4 years of continued heavy defoliation. The main symptom is epicormic branching. Upon examination, many of these dead and dying larch have been infested by the western larch borer, Tetropium veZutinum LeConte, or infected by root rotting fungi. The objective of this study was to determine if larch severely weakened by larch casebearer feeding would die if they were not attacked by borers or root rots.
URI:	http://koha.mediu.edu.my:8181/xmlui/handle/1957/3234
Other Identifiers:	http://hdl.handle.net/1957/3234
Appears in Collections:	ScholarsArchive@OSU

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