The Environmental Protection Agency (EPA) approved new application guidelines on wheat for both Quilt and Tilt fungicides from Syngenta Crop Protection. The changes reinforce application for both fungicides up to Feekes Growth Stage 10.5 and remove the 45-day preharvest interval (PHI) restriction.
"We had been evaluating our fungicide label language compared to the standard in the industry and found that most fungicide labels base their PHI on growth stages rather than days before harvest," explained Rodolfo Leyva, fungicide brand manager for Syngenta Crop Protection.
"Harvest is reliant on favorable weather conditions. In some cases, such as late plantings and warmer temperatures in the spring, the time to harvest is shortened. The label changes allow growers more flexibility to use Quilt and Tilt to protect their wheat crop from numerous diseases," Leyva said.
The label changes will help avoid similar situations as witnessed in Kansas in 2008 where wheat was quarantined after being treated with Quilt before Feekes 10.5 but harvested before the 45-day PHI. Following residue testing that showed levels were well below the tolerances, the grain was released for sale.
In more than 200 trials since 2003, Quilt has provided an average yield increase of seven to 12 bushels per acre across the United States, in part because of its ability to enhance Plant Performance. During the same timeframe across Kansas, Nebraska, Oklahoma, Texas and Colorado, 95 percent of trials showed a yield increase, with the average being 13 bushels per acre.
For more information, call 336-632-6000 or a local Syngenta sales representative, or visit www.syngenta.com.
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