Biennial thistles cause pasture problems

摘要

IF you haven't noticed them yet, you soon will. Biennial thistles will become more evident along roadsides, rights of way, waste areas and pastures in the next few weeks, says University of Illinois Extension crop systems educator Robert Bellm.Numerous biennial thistles grow in Illinois, including plumeless thistle, bull thistle, Flodman thistle and tall thistle. However, the most common biennial thistle found here by far is the musk thistle, also referred to as nodding thistle because of theway its flowers often bend over or "nod" toward the ground.