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Bayer CropScience announces Capreno herbicide

Bayer CropScience plans to introduce early next decade a new postemergence corn herbicide called Capreno.

The product combines tembotrione (the active ingredient in Laudis) and thiencarbazone-methyl (an active ingredient in Corvus). Thiencarbazone-methyl is a new ALS inhibitor, while tembotrione is an HPPD inhibitor.

Bayer officials expect Capreno to gain a label later this year, but it likely won’t have a wide product launch until 2011.

The compound is designed to be a one-pass postemergence product covering a wide spectrum of grasses and broadleaf weeds. "It combines the flexibility of traditional two-pass programs, too," says Brent Philbrook, herbicide product development manager for Bayer Crop Science. "It can be used alone or with tank-mix partners."

In the next couple years, Bayer officials will be testing the product to see whether to include glyphosate in the premix, or whether to include it as a tank mix option.

"It closes the fall panicum gap," says Philbrook. "Laudis doesn't control it, but thiencarbazone-methyl does." Capreno also adds residual control to the Laudis component.

Capreno also will have the flexibility to be used at a lower rate with the option of coming back later with a non-selective herbicide on herbicide-resistant corn.

Capreno will have a limited demonstration launch in 2009 targeting southern Indiana, southern Illinois, and Missouri. Demonstations will be up to 10,000 acres. A full product launch for farmers is likely in 2011.

Bayer CropScience plans to introduce early next decade a new postemergence corn herbicide called Capreno.

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