Requests for Information on Simazine Use on Turfgrass in California
Date: Monday, November 29, 2004
To: Harold Coble
USDA Office of Pest Management Policy
From: Diane Sherman
Chemical Review Manager
Special Review and Reregistration Division
U.S. Environmental Protection Agency
Subject: OPP update on simazine and propazine and request
Harold,
The risk assessments for simazine and propazine are still under way, and I was wondering if you might be able to help us with some information needs.
OPP is having a difficult time locating usage information for simazine products used on turfgrass (for sod, fairways, lawns, and similar areas).
We are interested in determining where this use occurs (states, regions), when this use occurs seasonally, and how popular simazine products are for turf. Essentially we are trying to determine how prevalent this use is.
We would welcome any information you'd be willing to share with us. Thank you for considering this request, and let me know if you have any questions.
Diane Sherman, Chemical Review
Manager
Special Review and Reregistration Division
U.S. Environmental Protection Agency
Office of Pesticide Programs, 7508C
Ariel Rios Building
1200 Pennsylvania Ave., NW
Washington, DC 20460
Phone: (703) 308-0128
Fax: (703) 308-8041
Date: November 30, 2004
To: Rick Melnicoe
Western Integrated Pest Management
From: Harold Coble
USDA Office of Pest Management Policy
Hi, guys, We are in need of use data for simazine on turfgrass. I know most of the use is on warm season grass, but we need to know how much and where it is used.
Thanks,
Harold Coble
Agronomist
USDA/ARS/OA
Office of Pest Management Policy
Cary, NC 27511
Phone: (919) 851-2621
Date: November 30, 2004
To: Harold Coble
USDA Office of Pest Management Policy
From: Rick Melnicoe
Western Integrated Pest Management
Dear Harold,
I cannot find any recent references to simazine use on turfgrass in California. In the year 2002 (most recent data available) 2,609 lbs a.i. of simazine was reported used for "landscape maintenance." Unfortunately, this category includes much more than turfgrass. It would include all ornamental uses applied by commercial applicators.
As far as commercial turfgrass production goes, it does not appear that any simazine was used, as that would be reported separately.
Rick Melnicoe
Director, Western Integrated Pest Management Center
Director, Office of Pesticide Information and Coordination (UC Statewide
Pesticide Coordinator)
One Shields Avenue
4249 Meyer Hall (FedEx Deliveries only)
University of California
Davis, CA 95616-8588
Phone: (530) 754-8378
Fax: (530) 754-8379
