Define the persistence of pigweeds in the soil seedbank across vast geographies and use this information to promote draw-down of the soil seedbank.
Understand the impact of harvest weed seed control strategies which may include destruction of weed seed as it exits the combine.
Improve herbicide recommendations to terminate cover crop growth in the spring and reduce residual herbicide carryover for fall planting to allow for more successful adoption of cover crops as part of the BMPs for herbicide-resistant weeds.
Determine the impact of soybean row spacing and seeding rate on aiding pigweed control across various production regions.
Understand the influence BMPs for Amaranthus species may have on management of other problematic weed species.
Characterize the effectiveness of multiple mode of action programs that will be promoted for pigweed control in herbicide-tolerant soybean having stacked traits.
Define the optimum “system” for each state or region in terms of weed control and economic returns through integration of strategies defined as successful in the earlier stages of this project.
Knowledge to educate growers on the impact of off-target doses of 2,4-D and dicamba, used for new soybean technologies, on the growth and yield of non-resistant soybean.