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March 31, 2021

The herbicide lineup from Bayer expands with Laudis®, for fast-acting broadleaf and grass weed control in field corn and sweet corn

Calgary, AB (March 31, 2021) – Today the Crop Science Division of Bayer announced that Laudis® corn herbicide is now commercially available for growers in Eastern Canada. Laudis offers fast-acting broadleaf weed control, including glyphosate resistant biotypes, with short-term residual activity and excellent crop safety in field corn and sweet corn.

With glyphosate resistance on the rise across Eastern Canada, a Stratus survey revealed resistant weeds are already present on 35 per cent of Ontario farms. 1 This has a significant impact on corn profitability, and can reduce yield up to 75 per cent depending on the weed species.1 Laudis is a Group 27 herbicide (tembotrione), providing growers with an additional mode of action to control glyphosate-resistant weeds including Canada fleabane, giant ragweed, common waterhemp, and common ragweed.

“Laudis is a great addition to an integrated weed management strategy,” says Andrew Chisholm, Trait and Trait Launch Manager, Bayer. “Using multiple effective herbicide modes of action is key to reducing selection pressure on weed populations. Laudis is a Group 27 active, which gives growers a new tool in their toolbox for control of glyphosate-resistant weeds.”

Laudis has a built-in safener that provides exceptional crop safety on field corn and sweet corn. Research trials showed minimal effects on crops, including pigment loss or bleaching injury, compared to other herbicides currently in the marketplace. Laudis also offers favorable rotation intervals for soybeans, potatoes and cereals, providing growers with even more flexibility. Laudis can be applied up to the 8-leaf stage, with rapid burndown and consistent control, and up to 3 weeks of residual activity when applied at the recommended rate (220 mL/ha).

Research trials demonstrated that tank mixing Laudis with Roundup Xtend® with VaporGrip® Technology or a Roundup® herbicide plus XtendiMax® with VaporGrip® Technology, or atrazine* offers exceptional control of tough broadleaf and grassy weeds.2

Laudis provides excellent tank-mix flexibility,” says Chisholm. “It works well in combination with Roundup branded herbicides, especially as part of a two-pass program, helping growers tackle a wider weed spectrum, and maximizing yield potential at harvest.” 

Laudis is available in Eastern Canada for the 2021 growing season. Growers are encouraged to talk to their local Bayer representative to learn more, or visit

1 Sikkema, P. 2020. Development of the building blocks for integrated weed management programs for control of glyphosate and multiple-resistant weeds. Grain Farmers of Ontario, 2020,
2 Laudis is
recommended for use with an adjuvant and UAN or AMS. Do not use UAN/AMS with Roundup Xtend or XtendiMax.

* Not applicable in Quebec
Always read and follow label directions. Bayer, Bayer Cross, Lauds®, Roundup Xtend®, Roundup®, VaporGrip® and XtendiMax® are registered trademarks of Bayer Group. Bayer CropScience Inc. is a member of CropLife Canada. ©2021 Bayer Group. All rights reserved.

About Bayer
Bayer is a global enterprise with core competencies in the life science fields of health care and nutrition. Its products and services are designed to help people and planet thrive by supporting efforts to master the major challenges presented by a growing and aging global population. Bayer is committed to drive sustainable development and generate a positive impact with its businesses. At the same time, the Group aims to increase its earning power and create value through innovation and growth. The Bayer brand stands for trust, reliability and quality throughout the world. In fiscal 2020, the Group employed around 100,000 people and had sales of 41.4 billion euros. R&D expenses before special items amounted to 4.9 billion euros. For more information, go to

For further information, contact:

Andrew Chisholm
Trait and Trait Launch Manager
Bayer CropScience Inc.
Phone: 306-550-9360

Hibaq Ali
Senior Manager
Weber Shandwick Canada
Phone: 416-455-8326

Forward-Looking Statements

This news release may contain forward-looking statements based on current assumptions and forecasts made by Bayer management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in Bayer’s public reports which are available on the Bayer website at The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.