Marestail presents a greater threat to soybeans than corn for other reasons, as well. The weed can become established before soybean plants emerge. The weed grows taller than soybeans, thus competing ...

A native species that has become a major problem in Panhandle and Sandhills rangeland is Marestail or Horseweed, a native annual forb also known as Canadian horseweed and Canada fleabane.

Marestail plants can produce up to 200,000 seed that are transported by wind, providing for effective spread of herbicide-resistant populations. The recommendation has been to treat fields in fall to ...

These marestail plants in full bloom will produce tens of thousands of tiny hairlike seeds that can blow and spread for miles. Source: Stan Smith, OSU Extension-Fairfield County.

Marestail plants set and disperse seeds from August to October, and up to 91% of fall-emerging marestail seeds can survive the winter, making marestail control in soybeans problematic.⁵ On the ...

The plants can reach up to 6 feet tall. The herbicides that provide good control of marestail are not generally available or practical for home gardens and landscapes. In the yard and garden, the most ...

Marestail is difficult to control due to its emergence pattern. Marestail primarily emerges in the fall though some will emerge Herbicide options for Marestail in corn, soybean ...

URBANA — Over the past several days, growers have increasingly been looking for options to control marestail after crop emergence, said University of Illinois associate professor of weed ...

URBANA — Widespread and often very dense populations of marestail (horseweed) in soybean fields last spring caught the attention of farmers and other weed management practitioners, with many ...

Marestail continues to challenge farmers as populations of herbicide resistant weeds gain ground. So why and how does this happen? Weeds are incredibly opportunistic. ... Herbicides work by ...

The weather for the past couple of weeks has allowed producers to make post-emergence herbicide applications. An issue they may be facing now is the presence of herbicide-resistant weeds.