A new herbicide premix promises visible weed control in corn in as little as four hours — plus residual activity lasting up to eight weeks. BASF Ridivex herbicide, which just cleared EPA approval, stacks three different herbicide modes of action to help corn growers stay ahead of tough broadleaf weeds.
BASF anticipates bringing Ridivex to market in 2027, though the product is not yet available for purchase, according to a company release.
Ridivex is a combination of three active ingredients with different herbicide sites of action: diflufenzopyr (Group 19), dicamba (Group 4) and pyroxasulfone (Group 15). The premix is designed to control susceptible weeds that have already emerged while providing residual activity against subsequent weed emergence.
For farmers battling waterhemp, Palmer amaranth and other difficult-to-manage broadleaf weeds, the combination could offer another tool for building a more diversified and effective weed management program.
The combination aims to deliver both post-emergence knockdown and residual suppression. Stacking herbicides with different sites of action is a key piece of resistance management, BASF reports. Growers still need to follow label directions and integrate effective residual herbicides, timely applications and other proven weed control practices.
BASF Touts Speed and Residual Control
BASF says Ridivex can show visible results on susceptible weeds in as little as four hours. The company also claims control of more than 200 broadleaf weed species and residual suppression of over 80 broadleaf and grass weeds, with activity lasting up to eight weeks under favorable conditions.
Results will vary based on weed species, weed size, application conditions and other factors. The approved label will spell out permitted uses, application requirements and specific weed control recommendations.
For growers, residual activity matters because weeds that emerge after the initial herbicide pass compete with corn and replenish the weed seedbank. A premix that tackles both emerged weeds and later flushes could streamline herbicide programs and minimize seed carrying over into future seasons.
More information on Ridivex herbicide is available at agriculture.basf.us.
UPL Introduces Winger SC For Use in Multiple Crops
UPL is launching Winger SC herbicide, a standalone formulation of the active ingredient pyroxasulfone. The herbicide is designed to help growers control waterhemp and other broadleaf weeds in corn and soybeans, as well as annual grasses in wheat. The product will be available for the upcoming growing season.
According to Jeffrey Baxter, UPL’s portfolio marketing manager for herbicides, Winger SC gives growers more flexibility in application rates and can provide an economical option for weed control and resistance management compared with other standalone pyroxasulfone products.
The herbicide is labeled for use in corn, soybeans, wheat and several specialty crops. Baxter says the product also has fewer label restrictions than some competing options, including approval for spring wheat to control annual grasses in Idaho, Oregon, Washington and Montana.
UPL recommends pairing Winger SC with other herbicides to strengthen weed control in preemergence or preplant programs.
The company plans to introduce additional pyroxasulfone formulations in the coming years. Baxter says the company is investing in the active ingredient to expand its position in the marketplace and help provide growers and retail partners with a more consistent, high-quality supply.
For more information, contact a local UPL representative or retailer, or visit uplcorp.com/us
