Yenish, Joe

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Butterfly bush was added to the Washington State Class C Noxious Weed List in 2005, and is a Class B Noxious Weed and Quarantine Plant in Oregon. This 2-page publication covers ...

This brief but thorough summary of common fennel includes a physical description of the plant and photographs to facilitate identification, the negative impacts it has on wildlife and native plants ...

Jointed goatgrass is a major problem in most winter wheat-growing areas west of the Mississippi River. This publication discusses best management practices for the prevention and control of jointed goatgrass.