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MISSISSIPPI
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.
Weeds
By the numbers
161
The number of weeds with herbicide resistance in the U.S. today.
30%
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.
Sources: Vince Davis, Wisconsin and Northern Illinois BASF technical service representative 2017 Mississippi Production Survey; International Survey of Herbicide Resistant Weeds (Heap, 2018)
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.
Download or order them at the bottom of this page.
Horseweed (Marestail)
Can germinate 10 months out of the year and be a challenge to control.
Morningglory Species
Vining/climbing nature makes them difficult to control.
Palmer Amaranth
Resistance to glyphosate and both ALS and PPO-inhibiting herbicides.
Common Ragweed
Resistance to glyphosate in Mississippi.
Sicklepod
Seeds can contaminate harvested seed.
Barnyardgrass
Late season escapes can contribute to the weed soil seed bank.
Broadleaf Signalgrass
Emerges from April through July, difficult to manage.
Italian Ryegrass
Becomes increasingly difficult to control because of profuse vegetative growth and a dense root system.
Yellow Nutsedge
Tillage and glyphosate only offer marginal disruption and control.
Photo Credits: Horseweed (Marestail): www.mississippi-crops.com / Morningglory species: John D. Byrd, Mississippi State University, Bugwood.org / Palmer Amaranth: Bruce Ackley, The Ohio State University, Bugwood.org / Common Ragweed: Ohio State Weed Lab, The Ohio State University, Bugwood.org / Sicklepod: Rebekah C. Wallace, University of Georgia, Bugwood.org / Barnyardgrass: Take Action On Weeds / Broadleaf Signalgrass: Rebekah C. Wallace, University of Georgia, Bugwood.org / Italian Ryegrass: Take Action On Weeds
