Residual Herbicides Key To Fighting Resistance

Taylor TruckeyDupont Crop Protection, Herbicides, NAFB, Weed control

jeff carpenterJeff Carpenter, with Dupont Crop Protection, spoke with me at TradeTalk to give an update on DuPont’s latest herbicide product, Trivence, and the importance of preventing resistant weeds using residual herbicides.

“Farmers are understanding there is an issue with Roundup not controlling the weeds it did 4-5 years ago. For the pigweed species especially (both palmer and waterhemp), as well as ragweed. In no-till, or low-till soybean production, marestail is an issue.” said Jeff Carpenter, DuPont Crop Protection. “You need to be preventative and that’s what DuPont is trying to do. We are developing herbicides to prevent the problem right from the get go. Trivence Soybean pre-emerge soybean herbicide. Trivence is the first with three different herbicide modes of action within the same container to address the three largest concerns; marestail, pigweed, and ragweed.”

Trivence is designed for soybeans, to be applied in conjunction with planting. DuPont stresses the importance of layering more residuals across your application windows. Winter annuals may become a problem this year and you can start addressing that this fall with preventative measures to prevent problems next spring. In weed control, whereas Roundup is a contact only herbicide, residuals last over a number of weeks to prevent weeds from becoming established.

Jeff recommends layering the residual, including multiple modes of action (as is Trivence), planting a solid population of your crop, sanitizing harvest equipment, and maintaining weeds in ditches and field edges to help stop the development of resistant weeds.

Weed control is a community effort. To learn more, Jeff encourages you to head to

To hear more of Jeff’s interview: [wpaudio url=”″ text=”Interview with Jeff Carpenter, DuPont Crop Protection”]

NAFB Convention Photo Album

Coverage of the NAFB convention is sponsored by
NAFB Convention is sponsored by FMC