EPA Established Tolerances to Use with New Trait

Kelly MarshallAgribusiness, biotechnology, Dupont Crop Protection, Herbicides

DuPont logoThe EPA has established tolerances for DuPont Crop Protection‘s herbicide-tolerant sorghum trait, Inzen.  The tolerances pertain to the use of herbicides with nicosulfuron and rimsulfuron.  Once the product is obtains registration by the EPA sorghum producers will be able to apply herbicides to control post emergence of grasses.

“Nicosulfuron and rimsulfuron will provide excellent control of annual grasses that deplete grain sorghum yields by as much as 20 percent,” said James Hay, regional director, North America DuPont Crop Protection. “Being able to grow sorghum without worrying about grass weed competition will be a real advantage for growers planting in arid regions.”

Field trials on sorghum varieties containing the non-GMO Inzen™ herbicide-tolerance trait show these active ingredients provide effective control of crabgrass, barnyardgrass, signalgrass and panicum and other grass weeds. Nicosulfuron and rimsulfuron should not be used on sorghum that does not contain the Inzen™ herbicide-tolerance sorghum trait, since severe crop injury will occur.

“Growers will soon have the opportunity to achieve a better crop, yield and profit,” said Hay. “With the stewardship training that will be provided, growers can help ensure that this technology is available to support sorghum yield for many years to come.”

These options will allow growers flexibility in crop rotation and recropping.  They may also be tank-mixed with other herbicides, insecticides and fungicides. Added to that, the new Inzen trait will allow growers to use alternate modes of action to help reduce glyphosate resistance.

This latest advancement from DuPont Crop Protection received the Agrow Best R&D Pipeline Award in 2013 and 2014.