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 ...

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 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 ...

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 dpeterso@ksu.edu Doug Shoup, Southeast Area Crops and Soils Specialist dshoup@ksu.edu Herbicide effectiveness on marestail depends largely on the stage of ...

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 ...

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 ...

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.