Information Requests Monitoring System

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Request ID: 133
Request From: Steve_Toth
Date Requested: Jul 11, 2005
Request: Note the following request for information regarding napropamide (Devrinol) uses. Please forward this request to the experts in your respective states/territories and submit your responses to the Southern Region IPM Center Information Requests Monitoring System by Monday, July 25, 2005. Thanks. Steve Toth ----------------------------------------- The following request came in from EPA. Let me know of any niche (important but less than 5%) uses for napropamide (Devrinol) in your areas. Harold D. Coble, Ph.D. Agronomist USDA/ARS/OA Office of Pest Management Policy 1730 Varsity Drive, Suite 110 Raleigh, NC 27606 Voice: (919) 513-0494 Fax: (919) 513 1114 email: harold_coble@ncsu.edu ------------------------------------------- BEAD is currently conducting a benefits analysis for napropamide where intend to target the uses with the highest percent crop treated (strawberries, tomatoes, peppers, tobacco, artichokes, and eggplant - % crop treated ranges from 10 - 20%). We wanted to also get an idea of the benefits for crops that are not in that group. For those commodities that are 5% crop treated or less, we would like to know if you are aware of any niches for these uses? There are a number of crops that fall into that category. BEAD has also identified that there could be significant use for ornamentals for some crop/state combinations (for example, nursery grown azaleas and rhododendrons in Washington and ornamental grasses in Michigan). If you could provide some information concerning these issues, we would really appreciate it. If you could expedite this information to us at your earliest convenience, it would be helpful. Let me know if you have any questions. Thanks for your help. Demson Demson Fuller Chemical Review Manager Special Review and Reregistration 703-308-8062 (work) 703-308-7042 (fax)

Responses
Responder: Mark Mossler
State: VI
Date Requested: Jul 13, 2005
Not Important/Relevant to my state(s)
Response: Napropamide is not available in the V.I.

Responder: Mark Mossler
State: PR
Date Requested: Jul 15, 2005
Not Important/Relevant to my state(s)
Response: Not available in PR.

Responder: Mark Mossler
State: FL
Date Requested: Jul 15, 2005
Response: Napropamide is less phytotoxic on some species of cut-flower and ornamental than the other more widely used herbicides such as oxyfluorfen and flumioxazin. Specifically, ficus, euonymus, eucalyptus, agapanthus, and liriope are species on which napropamide is used. Liriope is being produced in large numbers of small pots so this is a critical tool for these producers. This is for greenhouse and container plants, as other herbicides are available for field-grown plants. Napropamide is also used occasionally to control those weeds missed by the more standard herbicides. No other areas of <5% have been identified.

Responder: Alan York
State: NC
Date Requested: Jul 25, 2005
Response: Napropamide is not used in the crops I am responsible for (cotton, corn, soybean, small grains). Alan York Department of Crop Science North Carolina State University

Responder: Joe Neal
State: NC
Date Requested: Jul 25, 2005
Response: Napropamide is not commonly used in ornamentals in North Carolina. More commonly used in the Pacific Northwest and the upper mid-west. I'm not sure why, probably just historical accident -- the growers started using it long ago and have stuck with it. There may be some specific weeds it controls better than other products but I'm not aware of any. There is a possibility that it could be used in home landscapes. It is very safe to most ornamentals. But, the company has not developed the product for this purpose. Joe Neal Department of Horticultural Science North Carolina State University

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