Weeds in your soybean field compete for valuable nutrients, water and sunlight. Managing and eliminating weeds is crucial in capturing the highest yield potential of your soybeans. There are many management strategies to eliminating weed pressure.

Strategies or combination of several include:

  • Applying herbicides
  • Early planting
  • Cultivating
  • Tillage
  • Use of cover crops

Roundup Ready? technology has simplified soybean herbicide programs on farms. However, dependence on glyphosate has provided excessive selective pressure that resulted in glyphosate-resistant weeds.

Glyphosate-resistant weeds that are known in South Dakota:

  • Kochia
  • Common waterhemp
  • Common ragweed
  • Horseweed (marestail)
  • Common Lambsquarters

Take Action Against Herbicide Resistant Weeds
Develop a herbicide program for your farm that includes herbicides with multiple modes and multiple sites of action. Take action now!

For a chart that groups herbicides by their modes of action to assist you in selecting herbicides, click here.

Know Your Weeds
Effective weed management starts with knowing your weeds. It’s about knowing when they grow, when they pollinate and stopping them before they go to seed. It’s about recognizing their strengths and exploiting their weaknesses. It’s about delaying the evolution of resistance and taking control of herbicide-resistant weeds.

Manage Your Fields
Long-term herbicide-resistance management requires more than weed control aimed only at minimizing crop loss in any one season. It requires long-term strategies focused on delaying the evolution of herbicide resistance and reducing weed seed in your fields.

Effective herbicide-resistance management combines a variety of chemical and nonchemical management tactics to diversify selection pressure on weed populations and minimize spread of resistance genes.

It’s about giving your crops a competitive advantage against weeds. It’s about delaying the evolution of herbicide resistance and preserving herbicide technology.

Read the Take Action Guide for more information on how to manage herbicide-resistant weeds.