Monsanto To Add AMVAC Herbicide

Monsanto Co. and AMVAC Chemical Corp. have formed an agreement that broadens Monsanto’s Roundup Ready PLUS weed management platform in the U.S. to include AMVAC’s Impact herbicide beginning in the 2012 crop season. Impact is the first postemergence herbicide for control of emerged broadleaf and grass weeds in corn to be added to the platform.

Monsanto’s Roundup Ready PLUS platform allows farmers to fully utilize the benefits of their Roundup Ready crops by using the best practice recommendations for weed management and receiving financial incentives for using many of the products in the program. The Roundup Ready PLUS platform is designed to provide recommendations of effective, economical and sustainable weed control products for farmers.

Weed scientists recommend that farmers use multiple mechanisms of action when managing weeds on their farm. Impact’s active ingredient, topramezone, is an HPPD inhibitor herbicide that provides an effective tool in weed resistance management.

Eric Wintemute, Chairman & CEO of AMVAC stated: “We are very pleased to be partnering with the clear leader in glyphosate herbicides. This program will allow growers to preserve the moisture and nutrients in their soil that would otherwise be consumed by many of these hard-to-control/glyphosate-resistant broadleaf weeds. This collaborative engagement provides AMVAC with the opportunity for expanded sales of its high-performance Impact herbicide; provides Monsanto with even more effective and comprehensive herbicide control for its Roundup brand herbicides; and most importantly, provides our mutual customers, the U.S. corn grower, with the potential for maximum yield enhancement.”

“We are pleased to announce the addition of Impact as a post-emergent corn herbicide to our Roundup Ready PLUS Corn Incentives program,” said Tyler Hackstadt, Monsanto’s Selective Chemistry Portfolio Manager. “This agreement creates value and choice for farmers using the Roundup Ready PLUS system by offering another tool to effectively manage weeds on their farm. We believe this partnership further confirms our commitment to offer the best weed management recommendations to growers that will help them proactively use residual herbicides and multiple modes of action and at the same time optimize their potential for weed control and achieve maximum yield.”

Under the agreement, Monsanto will license its Roundup Ready PLUS trademarks for use on Impact and co-market AMVAC’s post-emergent corn herbicide Impact as part of the Roundup Ready PLUS weed management program. Financial terms of the agreement were not disclosed.

For more on the Roundup Ready PLUS Weed Management Solutions, visit


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