Winter and summer annual marestail (horseweed) produces about 200,000 seeds per plant that can travel up to 400' by wind. Marestail germinates more in the fall than any other time and goes dormant ...

For the past three years marestail populations east of the Mississippi River have exhibited resistance to glyphosate, the active ingredient in many popular herbicides, including Roundup. In 2002 the ...

WEST LAFAYETTE, Ind. - Using a diverse herbicide application strategy may increase production costs, but a five-year Purdue University study shows the practice will drastically reduce weeds and seeds ...

When Don Morse began growing cover crops, one of his main goals was to tackle the growing populations of marestail (horseweed) and waterhemp that defied traditional control measures. “I can give you a ...

BOZEMAN, Mont. – Experts from the Montana State University Extension Service have identified glyphosate-resistant Conyza Canadensis, also known as marestail or horseweed, in northeast Montana. The ...

BROOKINGS - In 2010, glyphosate-resistant Horseweed or Marestail was identified in South Dakota, which did not come as a big surprise to plant scientists, explained Paul O Johnson, SDSU Extension ...

WILLISTON, N.D. - Neighboring eastern Montana has its first verified case of glyphosate-resistant Conyza Canadensis, more commonly known as horseweed or marestail. While Williams County Extension ...

Glyphosate-resistant horseweed (or marestail or Conyza canadensis) has been confirmed throughout Delaware, Maryland and New Jersey. Horseweed is a winter annual weed. Emergence begins in the fall and ...

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 sciences ...

Horseweed (marestail, Conyza canadensis L.) is a unique weed species that can emerge in both fall and spring. In Nebraska, unlike the eastern Corn Belt, horseweed populations predominantly emerge in ...

One morning last summer, University of California Cooperative Extension vineyard weed control adviser John Roncoroni displayed a horseweed plant that had grown to more than 10 feet tall in a Yolo ...

One of the most important factors that determines the success of a dryland sorghum crop is the amount of water stored in the soil profile prior to planting. In dry years, 1 inch of available soil ...