October 31, 2008 07:00 PM
A new active ingredient combines knockdown and residual to combat pests like Western bean cutworm in corn.Banish Earworm
Why give worm pests room to wiggle? Instead you can give earworm, armyworm, Western bean cutworm and other Lepidoptera species a belt of an insecticide with a novel active ingredient now approved for corn, cotton and tobacco crops.

Belt SC insecticide (flubendiamide) from Bayer CropScience comes from a new chemical class, the phthalic acid diamides. It provides a mode of
action that behaves differently when consumed by target pests compared with conventional materials.

"The product disrupts the calcium balance within insect muscle cells, leading to a rapid cessation in feeding, as well as paralysis of target pests,” explains Steve Krueger, U.S. insecticides product development manager for Bayer CropScience. Krueger says Belt has shown no cross-resistance to conventional insecticides, and the new active will help growers manage resistance potential.

Belt received Environmental Protection Agency registration in time to help corn and cotton growers in the Texas High Plains battle late-season outbreaks of armyworm, looper and corn earworm. The insecticide will have full commercial availability in 2009.

Unlike other foliar protection tools, Belt shuts down worms within hours of their feeding and has a long residual, says Lee Hall, Belt product manager. The product is expected to find strong acceptance in seed corn and sweet corn markets.

Last spring's wet weather doled out some harsh lessons in nitrogen loss. A new product could help stabilize the situation.New Nitrogen Fix

Leaching and denitrification have become dirty words as nitrogen prices skyrocket. Fall applicators have long known that the nitrogen stabilizer called N-Serve can help them avoid losses.

Now, Dow AgroSciences brings similar technology to spring applicators in the form of a product named Instinct. Designed for use with urea-ammonium nitrate (UAN) and manure applications, the encapsulated product uses the same active ingredient as N-Serve to stabilize nitrogen in the soil.

Federal registration for the product is expected this fall. Dow product manager Adam Manwarren says Instinct remains stable on the soil surface for up to 10 days, allowing growers flexibility in scheduling spring applications with UAN and foundation herbicides.

The product is noncorrosive, requires no special application equipment and will be tank-mix compatible with fertilizers, herbicides and insecticides. Instinct can be incorporated mechanically or with a minimum of ½" of rain or irrigation.

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