Seed World

HELM Agro US Granted EPA Approval for Katagon Corn Herbicide


HELM Agro US, Inc. announced that Katagon herbicide has received federal registration from the U.S. Environmental Protection Agency.

Katagon is a next-generation HPPD premix herbicide for postemergence use in field corn, offering two modes of action with the added benefits of a low use rate formulation, crop safety profile and a wide application window. 

A co-formulation of the active ingredients tolpyralate and nicosulfuron, Katagon delivers highly effective control of broadleaf weeds plus enhanced grass control when used in combination with atrazine.

Katagon and atrazine together in a tank mix also provides residual activity for longer-lasting weed control performance.

Katagon was developed by Ishihara Sangyo Kaisha, Ltd. Earlier this year, HELM Agro US and ISK Biosciences Corporation, a subsidiary of Ishihara Sangyo Kaisha, Ltd., agreed to collaborate regarding the distribution of Katagon herbicide for the U.S. crop protection market.

Katagon is labeled for use in field corn grown for grain, silage and seed, that are herbicide-resistant, conventional or non-GMO hybrids.

In product development trials, Katagon has demonstrated high performance ratings in crop safety and postemergence control of glyphosate, PPO, triazine and ALS-resistant weeds like Palmer amaranth, waterhemp, ragweed, lambsquarters and foxtails.

According to Dave Schumacher, President of HELM Agro US, Katagon’s unique co-formulation of tolpyralate and nicosulfuron is the first of its kind in the U.S.

“In field trials, we’ve seen Katagon perform equal to if not better than several market leading post products on broadleaves and stubborn grasses,” says Schumacher. “Katagon is an ideal solution to help break the cycle of resistance without limiting growers’ ability to rotate to soybeans the following season.”