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Herbicide resistance threatens profit.

Ms June Small


Fights Herbicide Resistance

Weeds are becoming more and more resistant to herbicides. Mississippi soybean farmers must manage them. Your soybeans are at stake. The key is to correctly identify and treat weeds while they’re small and use a diversified plan for control. The Mississippi Soybean Promotion Board and the Take Action initiative are here to help every step of the way. 


By the numbers


The number of weeds with herbicide resistance in the U.S. today.


Less than a third of MS farmers implement proactive, diversified weed management practices.

$2 billion

Herbicide-resistant weeds cost U.S. farmers $2 billion a year.

Mississippi Weeds to Watch For

Learn everything you need to know about these herbicide-resistant weeds and how to fight them in our Mississippi Soybean Scouting and Management Guide.

Horseweed Adult  Mscrops

Horseweed (Marestail)

Can germinate 10 months out of the year and be a challenge to control.

Morning Glory

Morningglory Species

Vining/climbing nature makes them difficult to control.

Palmer Amaranth

Palmer Amaranth

Resistance to glyphosate and both ALS and PPO-inhibiting herbicides.

Common Ragweed1

Common Ragweed

Resistance to glyphosate in Mississippi.



Seeds can contaminate harvested seed.

Barnyard Grass


Late season escapes can contribute to the weed soil seed bank.

Broadleaf Signalgrass

Broadleaf Signalgrass

Emerges from April through July, difficult to manage.

Italian Ryegrass

Italian Ryegrass

Becomes increasingly difficult to control because of profuse vegetative growth and a dense root system.

Yellow Nutsedge

Yellow Nutsedge

Tillage and glyphosate only offer marginal disruption and control.

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