Request for Information on Tetrachlorvinphos: Use of WP and Dust Formulations
Date: May 2, 2005
To: Rick Melnicoe
Director, Western Integrated Pest Management Center
Dear IPM Center Directors,
EPA is finalizing the RED on tetrachlorvinphos (TCVP). They are considering a minor use critical exemption for the wettable powder paint and dust formulations on poultry and livestock for insect control. Use patterns of most WP and EC formulations of TCVP will remain intact.
EPA lacks the necessary information to rule favorably on this request. Hence, they have asked us at USDA, or more properly the IPM Centers to fill the void in their knowledge.
Questions:
- Is there any current use of the Dust or WP paint formulations of TCVP on poultry or livestock? If so, how much?
- Is this a critical use to the producers using it? Why?
- What alternatives, if any, exist? Why are they not used in place of the dust and WP paint formulations?
EPA is poised to make a decision soon, so we are requesting you respond in 10 days by May 12th.
Thanks for your attention to this request.
Sincerely,
Kent L. Smith, Ph.D.
Plant Pathologist
Office of Pest Management Policy (OPMP)
Agricultural Research Service (ARS)
United States Department of Agriculture (USDA)
1400 Independence Ave, SW
Room 3859, South Ag Building
Washington, DC 20250-0315
Phone: (202) 720-3186
Fax: (202) 720-3191
Web site
