Potential for defoliation by western spruce budworm in Douglas-fir stands in eastern Montana, 1975

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DC Field	Value	Language
dc.date	2006-11-07T23:53:17Z	-
dc.date	2006-11-07T23:53:17Z	-
dc.date	1975	-
dc.date.accessioned	2013-10-16T07:41:39Z	-
dc.date.available	2013-10-16T07:41:39Z	-
dc.date.issued	2013-10-16	-
dc.identifier	http://hdl.handle.net/1957/3326	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/xmlui/handle/1957/3326	-
dc.description	Aerially visible defoliation by the western spruce budworm, Choristoneura occidentalis Freeman, increased from 149,250 acres in 1973 to 649,319 acres in 1974 on five eastern Montana National Forests. An egg mass survey during the fall of 1974 predicted that additional defoliation will occur in 1975 on 47 of 48 plots located on these Forests. Areas with the highest potential for increasing populations in 1975 are being considered as sites for pilot control projects of several promising chemical and biological insecticides.	-
dc.language	en_US	-
dc.publisher	Missoula, MT. : Division of State & Private Forestry, USDA Forest Service/Northern Region	-
dc.relation	Report (United States. Forest Service. Northern Region)	-
dc.relation	no. 75-3	-
dc.relation	Forest environmental protection	-
dc.title	Potential for defoliation by western spruce budworm in Douglas-fir stands in eastern Montana, 1975	-
dc.type	Technical Report	-
Appears in Collections:	ScholarsArchive@OSU

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