The new herbicide, which will be available for sale from next month, is claimed to be highly effective in controlling more than 60 species of weeds and grass


Bayer secures EPA approval for new herbicide. (Credit: Pixabay/Alexas_Fotos)

The United States Environmental Protection Agency (EPA) has given its approval to Rezilon Herbicide, developed by Bayer CropScience’s vegetation management business.

The new herbicide, Rezilon, is touted to be useful in controlling summer and winter annual broadleaf weeds and grasses in pastures and hayfields, non-irrigation ditchbanks, fire breaks and any sites managed for hay.

As pre-emergence herbicide offering control of annual grass and broadleaf weeds in warm-season bermudagrass and Bahiagrass hay fields, Rezilon can help protect desirable warm-season grasses while unwanted annual grasses in the same site are controlled.

To control broadleaf and annual grass weeds round-the-year, Rezilon can be applied during late summer and late winter.

When applied in August, September or October, the herbicide can provide pre-emergence control of fall-emerging weeds and when applied between January and February, it can help in the pre-emergence control of spring-emerging weeds.

Indaziflam is active ingredient in Rezilon herbicide

The active ingredient within the Rezilon herbicide is indaziflam, which works primarily in targeting broadleaf and annual grass weeds in established bermudagrass.

Indaziflam offers growers a new mode of action for achieving desired weed control at their hay production sites. By controlling weeds, the herbicide can help in optimising the usage of fertiliser and water in hay and forage production.

Considering the label directions, Rezilon can help growers achieve better quality forage produced on their first harvest.

In total, more than 60 broadleaf and annual grass weeds, including species that have been developed herbicide resistance, such as ryegrass can be controlled using Rezilon.

The agrichemicals company further stated that once applied, Rezilon herbicide can have a lasting effect on the weeds throughout the season.

Bayer North America vegetation management marketing head Tiffany Fremder said: “We are pleased to see Rezilon herbicide receive federal approval from the EPA.

“Rezilon will give hay growers the weed control they’ve been asking for, while also allowing them to improve quality on their hay production sites.”

Bayer aims to begin sales of Rezilon from next month.