Dec. 1, 2021 08:00 AM

Sponsored content created and provided by Jason Belcher, stewardship and development manager - Eastern U.S., Bayer Environmental Science

Hay growers throughout the south lose significant profits every year because of weed infestations. Summer and winter annual grasses and broadleaf weeds rob nutrients and take up space to reduce the quality and quantity of hay. While they can be difficult to control, Bayer Range and Pasture is here to help.

When it comes to protecting hayfields from the many threatening species of broadleaf and annual grass weeds, the key is to apply Rezilon® herbicide early and follow label directions carefully. You may think now is too early to start thinking about results in the spring and summer, but you are actually right on time. There are several reasons why hay producers should apply Rezilon in January or early February for better control and results in the spring and summer:

  1. It’s easier and more effective. Controlling weeds before they emerge is more effective than controlling them once they have germinated. When weeds have already germinated or perennial species are present, growers need to take extra, more difficult steps like tank-mixing for postemergence control. Rezilon is an easy-to-use preemergence herbicide that’s effective for annual grass and broadleaf weed control. Growers could see higher-quality forage on their first cut as a result of controlling annual weed species early.

  2. It can lead to long-term control. Rezilon provides extended weed control other products cannot match. Rezilon has a unique mode of action that provides effective, long-lasting control of troublesome weed species, even those that are resistant to other herbicides, such as glyphosate. This translates into less frequent applications and increased quality and production from the fields.

  3. It has long residual activity. Once applied, Rezilon can remain on the soil surface with no degradation from sunlight while waiting on rainfall for activation. This means you can apply the treatment early and not have to worry about its effectiveness later.

  4. It gives growers flexibility. Spring weather can be unpredictable, with windy or rainy conditions often hindering applications. The residual that Rezilon offers gives growers greater flexibility, allowing for earlier application for pre-emergence control, ahead of this adverse weather.

Overall, Rezilon controls more than 60 broadleaf and annual grass weeds, including species that have developed herbicide resistance, such as ryegrass. Using Rezilon herbicide as directed can lead to higher-quality hay on the first harvest and also reduces the time and money hay growers would need to spend on additional herbicide applications.

As mentioned at the beginning, if you think it’s too early to start planning for a late-winter application, you are actually right on time. Now is the perfect time to put this plan into action and stop weeds in their tracks. At Bayer Range and Pasture, we know hay growers in the south are struggling to solve this problem, and we are here to help. Find us online at

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ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. Not all products are registered in all states and may be subject to use restrictions. The distribution, sale, or use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. Check with your local dealer or representative for the product registration status in your state. Bayer Environmental Science, a Division of Bayer CropScience LP, 5000 CentreGreen Way, Suite 400, Cary NC 27513. For additional product information, call toll-free 1-800-331-2867. Not all products are registered in all states. Bayer, the Bayer Cross and Rezilon® are registered trademarks of Bayer Group. ©2021 Bayer CropScience LP.