Profile of these weeds native to southern Europe and Ukraine includes infestation summaries for the Colorado front range.

Learn how to effectively control the noxious knapweed in naturalized populations of its more valuable fellow Eurasian, babysbreath.

Pest management guide offers a concise description of the exotic invader's biology, environmental effects, and control. Includes photos.

Invasive Eurasian perennial crowds out native plants and reduces crop yields. Find advice on biological and chemical control methods.