Status of the western hemlock looper in the northern region, 1972

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DC Field	Value	Language
dc.date	2006-10-30T18:45:31Z	-
dc.date	2006-10-30T18:45:31Z	-
dc.date	1972	-
dc.date.accessioned	2013-10-16T07:41:13Z	-
dc.date.available	2013-10-16T07:41:13Z	-
dc.date.issued	2013-10-16	-
dc.identifier	http://hdl.handle.net/1957/3256	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/xmlui/handle/1957/3256	-
dc.description	Over 10,000 acres of aerially visible western hemlock looper defoliation on grand fir was detected on State and Federal forests of central Idaho in 1972. This is the first report of this insect building up in Region 1 since a widespread outbreak in 1937-39. The western hemlock looper has the potential of being one of the most destructive forest insects in North America. It can cause tree mortality in 1 or 2 years of feeding. Extensive tree mortality has been associated with nearly all past outbreaks. Outbreaks usually persist for about 3 years at epidemic levels prior to collapsing from natural control agents. Insecticides have been effective in protecting large stands during some looper infestations.	-
dc.language	en_US	-
dc.publisher	Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region	-
dc.relation	Report (United States. Forest Service. Northern Region)	-
dc.relation	no. 72-10	-
dc.title	Status of the western hemlock looper in the northern region, 1972	-
dc.type	Technical Report	-
Appears in Collections:	ScholarsArchive@OSU

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