Herbicides

Herbicide-resistant waterhemp will challenge Midwestern soybean growers this year. The challenge will be compounded by the weed’s increased resistance to herbicides with multiple modes of action, including glyphosate, PPO inhibitors and ALS inhibitors. This will limit the efficacy of herbicides on waterhemp and greatly complicate weed management programs....More

Soil-residual herbicides are important components of integrated weed management programs, according to University of Illinois associate professor of weed science Aaron Hager. “They can allow the crop to become established without weed interference and reduce the intensity of selection for weed biotypes resistant to particular foliar-applied herbicides,” he said.  ...More

BASF Crop Protection just submitted an application for EPA registration of a new dicamba herbicide called Engenia to help manage glyphosate-resistant weeds. Engenia is a technologically advanced dicamba formulation and will be used on dicamba-tolerant crops currently under development, according to BASF....More

Weeds can be controlled prior to planting corn or soybean by using preplant tillage, herbicides, or both, according to Aaron Hager, associate professor of weed science at the University of Illinois.   Weed control may be improved when more than one active herbicide ingredient is included in the burndown application. Burndown applications often include growth-regulator herbicides, such as 2,4-D. Both amine and ester formulations of 2,4-D are labeled for preplanting burndown applications, but the ester formulation is usually preferred over the amine formulation....More