Callisto Xtra Herbicide Combines Two Modes of Action for Synergistic Broadleaf Weed Control

Greensboro, NC, USA, October 8, 2009—Syngenta Crop Protection today announced Callisto® Xtra as the brand name for a new, post-emergence corn herbicide that will be an excellent tank mix partner for glyphosate in glyphosate-tolerant corn (Agrisure® GT or Roundup Ready® hybrids).

Expected to receive U.S. Environmental Protection Agency (EPA) registration during the first quarter of 2010, Callisto Xtra combines the proven performance of two leading herbicides, Callisto® and AAtrex®, which perform synergistically to deliver long-lasting residual broadleaf weed control.

“The weed control delivered from Callisto Xtra is better than expected based on the control from the individual components,” said Gordon Vail, herbicide technical brand manager, Syngenta Crop Protection. “In other words, the whole is greater than the sum of its parts; one plus one equals three.”

The combination of Callisto and AAtrex also make Callisto Xtra an excellent tool for resistant weed management.

“Callisto offers longer-lasting residual broadleaf weed control than other post-emergence corn herbicides such as Status®, Laudis® and Impact®, but Callisto Xtra will contain two modes of action for enhanced control of broadleaf weeds becoming harder to manage with glyphosate alone, including lambsquarters, waterhemp, pigweed and ragweed,” Vail said. “Plus, it will provide faster burndown of weeds compared to glyphosate alone, or other HPPD herbicides plus glyphosate.”

Callisto Xtra will be the newest addition to the family of top-performing Syngenta corn herbicide brands powered by

Callisto Plant Technology®. Other brands include Halex GT®, Lumax®, Lexar® and Callisto.

“We will continue to provide Callisto to the market for use in corn greater than 12 inches in height, atrazine restricted areas, and for the wide range of other crops for which Callisto is registered,” said Carroll Moseley, herbicide brand manager, Syngenta Crop Protection. These include cranberry, blueberry, lingonberry, flax, pearl millet, asparagus, bluegrass grown for seed, perennial ryegrass grown for seed, tall fescue grown for seed, oats, rhubarb, grain sorghum and sweet sorghum.

In addition to corn, Callisto Xtra will also be registered for use in sugarcane.

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