Impact Core Herbicide Provides Tool to Growers in the Fight Against Resistant Weeds and Grasses

Newport Beach, CA

Impact Core herbicideAs corn farmers and ag retailers approach the 2021 growing season, weed resistance will continue to be a top concern. AMVAC’s latest herbicide Impact Core®, a postemergence herbicide introduced for the 2021 growing season, provides corn growers a new tool in the fight against resistant weeds and grasses.

Impact Core is formulated with the proven takedown power of Impact® Herbicide, and an industry-leading level of acetochlor, to control herbicide-resistant weeds and grasses such as waterhemp, Palmer amaranth and giant ragweed. Its novel formulation provides long-lasting product stability that delivers control across a wide range of field conditions.

Impact Core provides control across a range of weed densities as an early postemergence application following a planned preplant or preemergence application. It also gives reliable control when wet conditions prevent a timely preplant or preemergence application. Impact Core is Strong to the Core™.

“Every corn farmer is going to have unique challenges in the field, whether it’s fighting a range of weed species or being challenged by adverse application conditions,” said Nathaniel Quinn, AMVAC Marketing Manager for Corn, Soybeans and Sugar Beets. “Impact Core offers flexible application that provides control of emerged grass and broadleaf weeds with punishing takedown and lasting residual.”

In addition to Impact Core, AMVAC has a full portfolio of corn herbicides to help address weed resistance, including Sinate® Herbicide (also new in 2021) and Impact® Herbicide, which received federal EPA approval that allows expanded control of several weeds and extends Impact’s flexibility to more application situations. For more information on AMVAC’s corn herbicide portfolio, visit

About AMVAC Corporation

AMVAC Corporation is a subsidiary of American Vanguard Corporation. American Vanguard Corporation is a diversified specialty and agricultural products company that develops and markets products for crop protection management, turf and ornamentals management, and public safety and animal health applications. American Vanguard is included on the Russell 2000® & Russell 3000® Indexes and the Standard & Poors Small Cap 600 Index.

The Company, from time to time, may discuss forward-looking information. Except for the historical information contained in this release, all forward-looking statements are estimates by the Company’s management and are subject to various risks and uncertainties that may cause results to differ from management’s current expectations. Such factors include weather conditions, changes in regulatory policy and other risks as detailed from time-to-time in the Company’s SEC reports and filings. All forward-looking statements, if any, in this release represent the Company’s judgment as of the date of this release.

Contact Information
Jim Sulecki

AMVAC Communications | Lead and Founder, 40 Seasons Media

Mobile: 440-537-0625


©2021 AMVAC Chemical Corporation is a wholly owned subsidiary of American Vanguard Corporation. All rights reserved. American Vanguard, AMVAC, Impact, Impact Core, Sinate, and respective logos are trademarks owned by AMVAC Chemical Corporation.

Important: Always read and follow label instructions. See label for listed weeds and pests. Some products may not be registered for sale or use in all states or counties. Please check with your state agency responsible for pesticide registration to ensure registration status. All products are EPA registered.