Top Performing Soybeans for 2018

March 8, 2018
Ryan Ponwith
Master Field Sales Agronomist
Identifying the best herbicide program to keep your fields clean is essential to a successful 2018. Contact your local Field Sales Agronomist about available soybean technologies that will diversify your herbicide management plan, enabling you to conquer those problem weeds.

Increased herbicide resistance among many weed species, coupled with the absence of new herbicide modes of action, make weed management options quite limited for some cropping systems. Soybean trait technologies provide an opportunity to diversify your herbicide management plan and to improve yield potential.
Roundup Ready 2 Xtend® soybeans as well as LibertyLink® soybeans deliver different traits that broaden available herbicide options for your weed management plan. The Roundup Ready 2 Xtend® soybean line delivers tolerance to dicamba and glyphosate, two separate sites of action. LibertyLink® soybeans are resistant to glufosinate, a different site of action from dicamba and glyphosate.
Increasing Population of Resistant Weed Species
Several weed species have been documented as having resistance to at least one, if not multiple herbicide sites of action. Of the known herbicide sites of action today, only a few remain in which no herbicide resistance has been identified.
One of the biggest problem weeds in southern Minnesota, common waterhemp, has known resistance to at least five different herbicide sites of action. Waterhemp is commonly resistant to ALS herbicides and glyphosate. There has also been incidence of resistance to PPO herbicides, one of our last post emergence options to control waterhemp without trait technology.

A screening program conducted by the University of Illinois evaluated waterhemp resistance to glyphosate (Herbicide Group 9) and PPO inhibitors (Herbicide Group 14) in several states. Although Minnesota already has resistance issues, higher rates of resistance to these herbicide groups (particularly PPO’s) as we move farther south indicate that it’s only a matter of time until we are dealing with widespread resistance. If waterhemp becomes fully resistant to these herbicide groups, the only effective post emergence options will be glufosinate with the LibertyLink® trait, and dicamba with the Roundup Ready 2 Xtend® trait.

Developing a Herbicide Management Plan
As we start to formulate herbicide plans for 2018, consider the necessity of adequate weed control to optimize soybean yield potential. Weeds compete with plants for water, sunlight, and nutrients, all essential ingredients for maximum yield. Season-long weed control is critical in reaching this goal. A systems approach to herbicide management planning will be vital in the continued fight with rapidly evolving weed species.
UFC’s Field Sales Agronomists would like to remind our growers of some key tips to take full advantage of your herbicide management plan:
  • Utilize timely pre-and post-herbicide applications to ensure a successful early start to soybean growth.
  • Complete post-herbicide applications prior to weeds reaching 4-inches in height to ensure proper control and to limit competition with soybeans.
  • Use residual herbicides to provide prolonged control of problem weeds, such as waterhemp.
  • Employ multiple sites of action in your herbicide management plan; consider alternating chemistries in your crop rotation.

Utilizing the trait technologies available will allow flexibility in herbicide options and will prove as a valuable tool in keeping soybean fields weed free. The technology provided by Roundup Ready 2 Xtend® soybeans and LibertyLink® soybeans provide two additional sites of action in a time that those herbicide options are desperately needed.
As your Trusted Advisors, UFC is here to provide experienced insights that benefit your operation.
To learn more about Roundup Ready 2 Xtend® soybeans, LibertyLink® soybeans, or to purchase your remaining soybean needs, contact your UFC Field Sales Agronomist today!