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 ...

Due to a variety of factors, both common lambsquarters and marestail (also called horseweed) are challenging soybean weeds. Both plants have high seed production, increasing resistance to common ...

A marestail weed regrows after glyphosate application. Marestail, or horseweed, has become increasingly problematic for Indiana and Ohio soybean growers because it is resistant to common herbicides.

The bad news? Marestail is a problematic weed lurking in many fields. The good news? There are several control options, according to Kansas State University Extension specialists Dallas Peterson and ...

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 ...

Marestail . . . if you frequent farm stores you’ve heard people talking about how hard it is to kill. If you’ve been to a lawn and garden store, it’s the one they call, “that bushy leafed weed that ...

While driving around Coshocton County and the surrounding counties as well, it doesn’t take long to identify our most prevalent problem weed in soybeans. Marestail continues to challenge farmers as ...

Marestail and pigweed are some of the most dreaded weeds for crop producers across North Central Kansas, especially when they grow in soybean fields. Controlling these weeds, before they reach four ...

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 ...

Central Illinois corn farmer Jerry McCulley refills his sprayer with the weed killer glyphosate on a farm near Auburn. A handful of hardy weeds have adapted to survive glyphosate — sold as Roundup and ...

Marestail has quickly established itself as the number one problem weed in soybean production. Marestail (Conyza canadensis) is a native annual plant belonging to the aster family. A mature plant is ...

We are probably not in a true “late planting situation” yet, but northwest Ohio is now wet and not that warm. The weeds obviously continue to get bigger under wet conditions, and what was a relatively ...