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Mississippi receives Denim Section 18

The Section 18 exemption for Denim, a Syngenta product, expires Sept. 30, 2002 and allows the application of the product on up to 250,000 of the state’s cotton acres.

According to Tommy McDaniel, branch director for the Mississippi Bureau of Plant Industry, the state applied for the emergency exemption on behalf of cotton growers earlier this year.

Under the Section 18 permit, Denim 0.16EC may be applied by ground equipment or by air at a rate of 0.0075- to 0.01 pounds of active ingredient per acre. This rate translates to 6 to 8 ounces of product per acre.

No more than three applications of the pesticide may be made for a maximum of 24-ounces of product per acre per season. This limit includes the combined product used for both beet armyworm and tobacco budworm treatments.

For the control of tobacco budworm, the product label recommends that Denim be applied at the rate of 6 ounces per acre in a tank-mix of 8 ounces per acre when used as a stand-alone product.

“Application should be targeted at small larvae measuring about one-quarter of an inch. At least two applications may be needed to control a generation during an extended egg laying period,” the label says.

Labeled rates for beet armyworm are also 6 to 8 ounces of production per acre to treat small larvae. Again, two applications may be required to obtain adequate control of the pest.

“Applications must be made in a minimum of 5 gallons of finished spray per acre for aerial application and 10 gallons for ground. A five-day application interval and a 21-day pre-harvest interval must be observed. Denim may not be applied through any type of irrigation system and livestock may not be grazed in treated areas,” the EPA says.

In addition, the emergency exemption permit mandates a 48-hour restricted entry interval, and treatments may not be made within 100 feet of permanent natural bodies of surface water or reservoirs.

“This is the fourth year the use of emamectin benzoate on cotton has been requested under section 18 of FIFRA. Syngenta Crop Protection submitted a tolerance petition, in support of registration, to EPA in July of 1999, and progress toward registration is considered adequate at this time,” says Debra Edwards, acting director of EPA’s office of pesticide programs, registration division.

For more information, read the label and call the Mississippi Bureau of Plant Industry at (662) 325-3390. Growers must have a copy of the Section 18 label in their possession at the time of application.

e-mail: [email protected]

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