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 marestail has infested about 2.2 million acres in Nebraska. Marestail is difficult to control due to its emergence pattern. Marestail primarily emerges in the fall though some ...

One weed that continues to be a problem throughout Ohio and here in Coshocton County is marestail. Marestail is an annual weed that can follow a winter or summer annual life cycle. It can compete with ...

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 ...

Drive by just about any soybean field in the community and you are likely to see marestail growing high above the canopy. In some fields, the marestail is overwhelming the beans, in others the plant ...

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 ...

Dallas Peterson, Weed Management Specialist [email protected] Doug Shoup, Southeast Area Crops and Soils Specialist [email protected] Herbicide effectiveness on marestail depends largely on the stage of ...

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 coming to ...

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. A number of ...