Winter wheat growers have a new tool for control of cheat, downy brome, Italian ryegrass and wild oats. PowerFlex herbicide from Dow AgroSciences was cleared by the U.S Environmental Protection Agency and the company is working to get state approvals in March. In fact, it was announced on March 26, that Idaho has registered PowerFlex for use.
The new herbicide features the active ingredient pyroxsulam, which not only controls those grassy weeds, but offers some broadleaf activity too. "We received the label in late February," comments Jim Parker, senior marketing specialist, Dow AgroSciences. "We're working to get state labels now. The best time for application has already passed, but it's a new product choice for growers."
The active ingredient uses the ALS mode of action, which can create issues with resistance, however Parker explains the company is promoting this program as a one-use, one-year product for control. The product's broad spectrum activity offers new choices for winter wheat growers. Dow is also working on a product for spring wheat, but doesn't expect a label until later this year. In addition, the ALS approach overcomes worries with such weeds as wild oats resistant to ACCase inhibitor chemistry.
Powerflex is a dry product used at 3.5 ounces per acre. The product also offers growers flexibility because it has a nine-month interval for rotating into crops like soybeans, sorghum, peas, lentils, sugarbeets, corn, potatoes, canola and sunflowers in all geographies.
The product can be applied postemergence to actively growing wheat in either fall or spring. Best time to apply is between the two-leaf and two-tiller stages, but it can be applied as late as the three-leaf to jointing stage.
You can learn more by visiting www.powerflexherbicide.com