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Using Aminopyralid Preemergent in Pastures for Western Ragweed Control

Eddie Funderburg, Ed.D. James Locke Jon Biermacher, Ph.D.

By Eddie Funderburg, Ed.D., Senior Soils and Crops Consultant,
James Locke, Planned Consultation Manager and Senior Soils and Crops Consultant
and Jon Biermacher, Ph.D., Professor

Posted Aug. 13, 2014

Western ragweed (Ambrosia psilostachya) is considered one of the most common weeds in pastures and rangeland in the Southern Great Plains. It is an aggressive competitor with grasses and is generally considered unpalatable to cattle (Vermeire et al., 2013). It is found in abundance in at least 30 states, Canada and Mexico (Pavek, 1992).

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