Information Requests Monitoring System

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Request ID: 144
Request From: Steve_Toth@ncsu.edu
Date Requested: Feb 24, 2006
Request: Note the following request for information on the importance of carbofuran use on crops with low estimated uses (less than 1% of crop is treated with carbofuran) which are listed below. Please have the experts in your state or territory look at the list of crops and answer the five (5) questions below for those important uses. I need to have the responses by Thursday, March 30, 2006 so I can prepare a coordinated response to USDA and EPA by the April 1, 2006 deadline. Thanks. Steve Toth ----------------------------------------------------------- Dear IPM Centers and other interested parties: Carbofuran (Furadan) Information Request (Deadline for this is April 1st) EPA is completing the interim reregistration decision for carbofuran, and will be putting the revised risk assessments out for a Phase 5 public comment period in several weeks. At that time they will also be asking stakeholders for any information on benefits and risk management suggestions. Carbofuran is used on a wide variety of crops including fruits, vegetables, field crops, and ornamentals. Dietary (food and water), occupational, and ecological risks (particularly to birds, mammals, and aquatic invertebrates) are of concern from all uses of carbofuran. The risk picture has worsened during Phase 4 due to new data and studies. The Biological and Economic Analysis Division (BEAD) at EPA is focusing on those crops with greater than 1% Crop Treated (CT). EPA is asking USDA, the IPM Centers, and other interested parties for help in getting information on the importance of carbofuran for those crops with low estimates of use (less than 1% of crop treated). EPA assumes that while it is generally true that very low percent crop treated means there are affordable and effective alternatives, it is possible there are niches where the chemical is necessary for crop production. We at OPMP believe that a low percent crop treated could mean it is used only in times of emergency or during a crisis. Therefore, EPA and OPMP need help in identifying any important uses of carbofuran at this early stage in the mitigation process. The following crops fall into this category (less than 1% crop treated): banana barley coffee cotton cranberry flax grapes melons (except watermelons) oats ornamentals pine forests plantains sorghum soybeans spinach sugar beets sugarcane sunflower tobacco wheat Please be aware how important this information will be to the Agency. If a use is to be maintained, EPA will need some documentation to support that use in light of existing risks (which are many). It would be very helpful if growers, commodity groups, researchers, extension folks, commodity experts, etc, could provide answers to as many of the following questions as possible. Your answers should only pertain to the crops listed above. (1) In what region (state/county, etc.) of the US does the use occur? (2) What pests are driving the low usage of carbofuran? Do they occur yearly or sporadically? (3) What are the details of the typical usage pattern (e.g., number of applications per season, use rate per application, application equipment, acres treated, time of application in the season?) (4) What worker activities typically occur during and after carbofuran applications? (5) What available alternatives, if any, could replace carbofuran? For this question please consider alternative costs, effectiveness, residual activity, resistance issues, impacts on beneficial insects/mites, etc. It would be best to coordinate responses within each Center and then forward them to EPA. Please address all responses directly to Stephanie Plummer, the CRM at EPA, and cc any responses to me so I am aware of what has been sent to EPA. We have set an April 1st deadline for the responses. Stephanie Plummer Chemical Review Manager Office of Pesticide Programs Special Review and Reregistration Division (703) 305-0076 plummer.stephanie@epa.gov I will thank you in advance for all your help on this one. I know it is a large request, but a very important one. Sincerely, Wilfred Burr

Responses
Responder: Henry Fadamiro
State: AL
Date Requested: Feb 28, 2006
Response: Carbofuran (Furadan) is not recommended for use on cotton, wheat, and most other crops in AL. Its main use in AL is on alfalfa for alfalfa weevil. Furadan has a supplemental label for chinch bugs in corn and sorghum in AL. This was an important use before the latest generation pyrethroids became available on corn and sorghum. Now, people will use one of the pyrethroids.

Responder: Jack Bacheler
State: NC
Date Requested: Mar 10, 2006
Response: Furadan is not recommended on cotton in NC. (1) NC: not recommended on cotton (2-5) NA Jack Bacheler Extension Entomologist (Cotton) Department of Entomology North Carolina State University

Responder: Steve Bambara
State: NC
Date Requested: Mar 10, 2006
Response: I don't think Furadan is heavily used in small grains or alfalfa anymore. Steve Bambara Extension Entomologist Department of Entomology North Carolina State University

Responder: Doug Johnson
State: KY
Date Requested: Mar 10, 2006
Response: I can reply for soybean, sorghum (for grain) and wheat. (1) In what region (state/county, etc.) of the US does the use occur? THESE CROPS ARE PRODUCED PRIMARLY IN THE WESTERN 1/3 OF THE STATE. (2) What pests are driving the low usage of carbofuran? Do they occur yearly or sporadically? I DO NOT KNOW OF ANY USE OF CARBOFURAN ON THESE CROPS. (3) What are the details of the typical usage pattern (e.g., number of applications per season, use rate per application, application equipment, acres treated, time of application in the season?) NOT APPLICABLE. (4) What worker activities typically occur during and after carbofuran applications? NOT APPLICABLE (5) What available alternatives, if any, could replace carbofuran? For this question please consider alternative costs, effectiveness, residual activity, resistance issues, impacts on beneficial insects/mites, etc. NOT APPLICABLE Hope this helps, Douglas W. Johnson, Extension Entomologist UK-IPM Coordinator UK-REC 1205 Hopkinsville St. Princeton, KY 42445-0469 Voice: 270/365-7541 x 214 Campus: 7-9503 x214 FAX: 270/365-2667 E-Mail: doug.johnson@uky.edu http://www.ca.uky.edu/entweb/

Responder: Ric Bessin
State: KY
Date Requested: Mar 10, 2006
Response: It would be very helpful if growers, commodity groups, researchers, extension folks, commodity experts, etc, could provide answers to as many of the following questions as possible. Your answers should only pertain to the crops listed above. I'll let Doug Johnson answer with regards to soybean, sorghum and wheat. (1) In what region (state/county, etc.) of the US does the use occur? Not in KY, as we do not grow many of these crops commercially. The vegetable crops we do grow, grapes and melons, do not have furadan used on them in our state anymore, but furadan was important historically. (2) What pests are driving the low usage of carbofuran? Do they occur yearly or sporadically? Not applicable. (3) What are the details of the typical usage pattern (e.g., number of applications per season, use rate per application, application equipment, acres treated, time of application in the season?) Not applicable. (4) What worker activities typically occur during and after carbofuran applications? Not applicable. (5) What available alternatives, if any, could replace carbofuran? For this question please consider alternative costs, effectiveness, residual activity, resistance issues, impacts on beneficial insects/mites, etc. They have already replaced furadan. It would be best to coordinate responses within each Center and then forward them to EPA. Please address all responses directly to Stephanie Plummer, the CRM at EPA, and cc any responses to me so I am aware of what has been sent to EPA. We have set an April 1st deadline for the responses. Ric Bessin Extension Entomologist Department of Entomology University of Kentucky Lexington, KY 40546-0091 rbessin@uky.edu FAX 859-323-1120 Phone 859-257-7456

Responder: Carl Patrick
State: TX
Date Requested: Mar 10, 2006
Response: Sunflower grown in the Texas Panhandle as well as throughout the Great Plains has a potential pest in sunflower stem weevil, Cylindrocopturus adspersus. An at-plant application of Furadan 4-F is effective against stem weevil. Local tests with seed treatments (Cruiser & Gaucho) have proven to be ineffective. Responses to the 5 questions in your email: (1) Great Plains sunflower production areas. (2) Sunflower stem weevil. They annually occur at some level. (3) 1 application/season, 2.5 fl. oz. of Furadan 4F per 1000 ft. of row, injection system application equipment, at-plant application. (4) The tractor operator would be the only worker present during application of Furadan, cultivation activities several weeks following planting would require a tractor operator. (5) Alternative would be to plant later in June vs April & May - yields and quality suffer with later planting. Foliar insecticide applications to control adult weevils is possible; however, weevils are small (1/8") with a cryptic coloration and easily disturbed - making scouting for them very difficult. Carl D. Patrick Extension Entomologist Texas Cooperative Extension 6500 Amarillo Blvd. West Amarillo, Texas 79106-1796 Ph: (806) 677-5600 Fax: (806) 677-5644 E-mail: c-patrick@tamu.edu

Responder: Ples Spradley
State: AR
Date Requested: Mar 13, 2006
Response: My only information concerns spinach and pine seed orchards. Carbofuran, to my knowledge is not used in spinach in Arkansas. I don't believe it to be registered. My information for pine seed orchards is very old - 20+ years but carbofuran was the chief insect management tool in the seed orchards maintained by the Arkansas Forestry Commission (Bluff City and possibly Bacum) and the U.S. Forest Service (Mt. Ida). I would guess that it is still very important if registered. How about field corn? Although not on your list, it still has a place in corn insect management. Dr. Paul McCleod, Professor - Vegetable & Field Corn Entomology, Dept. of Entomology, Univ. of Arkansas

Responder: Mark Mossler
State: VI
Date Requested: Mar 14, 2006
Not Important/Relevant to my state(s)
Response:

Responder: Mark Mossler
State: PR
Date Requested: Mar 14, 2006
Not Important/Relevant to my state(s)
Response: Carbofuran is not employed in banana/plantain/coffee production in PR.

Responder: Mark Mossler
State: FL
Date Requested: Mar 14, 2006
Response: Carbofuran is no longer employed in cotton, wheat, ornamentals, pine forest or sugarcane production in FL based on responses from Extension agents and grower representatives.

Responder: Ples Spradley
State: AR
Date Requested: Mar 14, 2006
Response: The following response is from Dr. Craig Andersen, Extension Horticulturist - Vegetables, Dept. of Horticulture, Univ. of Arkansas: The only useage for carbofuran on spinach that I am aware of is for seed production, and that is not an issue in Arkansas.

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