Warrant herbicide now approved for use on alfalfa

Warrant herbicide, an encapsulated formulation of acetochlor often used for pre-emergent weed control in soybeans, has received registration for use in establishing and established alfalfa. This product will be an important part of a weed resistance management program in alfalfa.

To view a copy of the supplemental label visit alfalfa.org/newsletter/Warrantlabel.pdf.

Here are some important points from the supplemental label:

For fall-planted alfalfa, including Roundup Ready alfalfa, this product may be applied at 1.25 to 2 quarts per acre up to or at the 4th-trifoliate stage following emergence of the new stand, or following green-up or re-growth the following spring.

For spring-planted alfalfa, including Roundup Ready alfalfa, this product may be applied at 1.25 to 2 quarts per acre up to or at the 4th-trifoliate stage following emergence of the new stand.

Use rates are specified by soil type in the supplemental label.

Allow a minimum of 20 days between an application and subsequent cutting for forage or hay, or before open grazing of forage by livestock.

Do not exceed a maximum of 2 quarts (1.5 lbs a.i.) per acre of this product as a single application.

Do not exceed a total of 3 applications of this product per alfalfa growing season.

Do not exceed a combined total of 4 quarts (3 lbs a.i.) per acre per year in newly established stands (seeding year) or in established alfalfa stands (non-seeding year), when making multiple applications of this product or other acetochlor containing products.

As of early September, the states that have officially accepted the label include: Alabama, Arizona, Arkansas, Connecticut, Delaware, Georgia, Iowa, Kansas, Kentucky, Maryland, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Jersey, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Vermont, West Virginia, Wisconsin, and Wyoming. Additional states may be added moving forward.