Herbicide Premix Chart

March 11, 2011 08:48 PM

The introduction of novel herbicide active ingredients has slowed the past few years, but that’s not true for premix products. There are nearly 80 different commercial premix products in the marketplace today, and that doesn’t count generics.

Knowing the components of these herbicide combinations is the first step in being able to use them in a weed resistance management program.

Michigan State University Extension weed specialist Christy Sprague developed this herbicide premix chart to help growers sort through the many options.

The first column lists premix herbicides alphabetically. While you may be most familiar with this name, it is the corresponding site of action group numbers that are most helpful in designating herbicide programs. Chemical companies now voluntarily include the site of action group numbers on herbicide labels based on a system developed by the Weed Science Society of America (WSSA).

Download the Herbicide Premix Chart.

The new labels for premix herbicides will list multiple group numbers. Using herbicides that contain multiple sites of action may reduce the selection pressure caused by overusing a product with a single site of action. For more information on the components of these premixes, see the Corn and Soybean Herbicide Chart.

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