Valor Registered for Dry Bean Desiccation
June 18, 2008
Valor® Herbicide from Valent U.S.A. Corporation has received Environmental Protection Agency (EPA) registration for dry bean desiccation. Valors complete desiccation of dry bean leaves and stems is a huge benefit to farmers since dry beans have to be near perfect when they go to the processor. Weather can also be a hurdle for dry bean farmers as harvest nears.
With very few desiccants available for the dry bean market, this is good news for dry bean farmers.
Richard Zollinger, extension weed specialist with North Dakota State University was pleased with the announcement. Seven or eight years ago dry bean growers reported that registered products were not effective. And about the only product we had at that time was Gramoxone or the active ingredient Paraquat and under cool and cloudy conditions, and low sunlight, Paraquat does not work that well, he says.
Zollinger did some experiments and looked at every possible chemical out there that might have activity as a desiccate. We were using acids, we were using experimentals and we were using products registered in other crops. We used everything we could think of and very quickly things started to separate out between what was good and what was marginal and what didnt work at all. Valor had excellent desiccation properties and Zollinger found that it out performed other desiccants.
After more studies and experiments, Valor has always been as good and, in most times, better than anything else that they had tested. So dry bean growers should have a product that will improve their desiccation of dry beans.
Zollinger cautions growers, however, not to place overly high expectations on the product. In warm and sunny weather, Valor is going to work better than what is already registered. But in cool, cloudy weather, Valor is not going to work as good as in warm, sunny conditions. He stresses that Valor isnt a fail safe herbicide and it is still susceptible to environmental influences like everything else. But it will still work better than other current products.
Valor has a low use rate - 1.5 to 2.0 oz/A with an MSO-type adjuvant. Valor is not a restricted use product and offers greater handler safety than other desiccants.