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Survey for Spotted Knapweed in North Dakota

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Title: Survey for Spotted Knapweed in North Dakota
Author: Lym, Rodney G.; Bultsma, Paul M.
Description: Spotted knapweed is a noxious weed of pasture and range lands in many states and Canada. This weed reduces forage production, decreases range carrying capacity and forms solid stands due to alleopathic effects on other plants. It is a native of Europe and was introduced into British Columbia as a contaminant mixed in with alfalfa seed around 1890. It has spread rapidly and extensively. A survey in the summer of 1984 to determine the level of infestation of spotted knapweed in North Dakota. The survey methods are given here along with the results of such and it's resultant discussion thereof. Spotted knapweed was noticed mostly on disturbed sites. The eradication of spotted knapweed from North Dakota was deemed possible as only small areas were then currently infested. Left unaddressed, it was perceived that spotted knapweed could eclipse leafy spurge infestation levels in North Dakota. However, they noted that is was being addressed 20-30 years in advance unlike leafy spurge.
Date: 1985
Subject: Weeds
Permalink: http://hdl.handle.net/10365/8245

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