Growers looking to control difficult weeds like waterhemp, giant ragweed and Palmer amaranth now have access to Acuron corn herbicide from Syngenta.

Acuron has been shown to control 70-plus weeds, including broadleaf and grass weeds like Palmer amaranth, marestail, giant ragweed, kochia, morningglory and waterhemp. These weeds have become particularly hard for growers to manage.

“Current herbicides are losing effectiveness, and it’s not unusual for us to see growers spending as much as $60 per acre or more on herbicides for corn,” said Gordon Vail, Ph.D., technical product lead for Syngenta. “The best strategy in this scenario is to use a high-performing pre-emerge herbicide like Acuron that will stop weeds before they start, and we’re excited we can now offer it to growers.”

Palmer amaranth, which produces up to 100,000 seeds per plant and can grow as fast as 3 inches per day, has been a serious challenge for growers with its ability to bring about yield losses of more than 90 percent in corn. Acuron has been shown to outperform competitive products on Palmer amaranth and other difficult weeds.

What makes the herbicide so effective is the novel chemistry bicyclopyrone, which complements the other three active ingredients in the premix to target a wider range of weeds than previous products. The four active ingredients and three modes of action in Acuron deliver a multi-targeted approach to weed control, while reducing the overall rates of certain herbicides.