Information Requests Monitoring System

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Request ID: 83
Request From: Steve Toth
Date Requested: Jun 25, 2004
Request: The RED for captan was completed in 1999. Fortunately, all captan uses are expected to be reregistered. However, new labels have not been approved due to some lingering questions. EPA plans to decide the following issues shortly and would like to utilize the field knowledge of university scientists. We have a chance to guide the final label language. Please have the appropriate scientists in your states review the following questions and send me their responses. Question #1: Ornamental Uses. The current captan ornamental labels stipulate a 4-day REI following application. While this REI is acceptable, the label also indicates that hand labor can reenter the treated area during the last 2 days of the REI with appropriate PPE. Under some conditions this activity could be in violation of WPS. While some activities of limited contact may fall within WPS, such as pruning and irrigation maintenance, others may not, such as weeding. For new labels, reentry activities need to be specified. What types of activities are necessary during the REI in ornamentals? Question #2: Turf Use. A rate of 4 lb ai/acre is acceptable, however the current maximum label rate of 39 lb ai/acre is not. What is the maximum rate needed on turf? Question #3: Eye Washing Stations. Captan is a toxicity 1 eye irritant that may cause permanent damage to the cornea. The completed RED and WPS require an eye wash station within 1/4 mile of treated areas for at least 7 days (preferably 30 days) following treatment. Should the eye wash station be closer than 1/4 mile? Perhaps within 100 yards or immediately available? Would an eye wash fanny pack be useful? Please send your responses to me by July 9. Thanks for your help, Kent *********************************************** 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 202-720-3186 (voice) 202-720-3191 (fax) ksmith@ars.usda.gov www.ars.usda.gov/opmp/

Responses
Responder: Mark Mossler
State: FL
Date Requested:
Response: Upon contacting extension people and sod growers in Florida, I have come to determine that this material is not used in this area. Chlorothalonil and mancozeb are grower standards in this area. Mark Mossler University of Florida

Responder: Lane Tredway
State:
Date Requested:
Response: To my knowledge, there is no use of Captan on turf in North Carolina. In fact, I was unaware that it was still labeled. Lane Tredway Department of Plant Pathology North Carolina State University

Responder: Mike Weaver
State: VA
Date Requested:
Response: Question #1: Ornamental Uses. The current captan ornamental labels stipulate a 4-day REI following application. While this REI is acceptable, the label also indicates that hand labor can reenter the treated area during the last 2 days of the REI with appropriate PPE. Under some conditions this activity could be in violation of WPS. While some activities of limited contact may fall within WPS, such as pruning and irrigation maintenance, others may not, such as weeding. For new labels, reentry activities need to be specified. What types of activities are necessary during the REI in ornamentals? I WOULD GUESS MOSTLY WATERING. PRUNING CAN WAIT AND OTHER REENTRY CAN WAIT IN MOST CASES. Question #2: Turf Use. A rate of 4 lb ai/acre is acceptable, however the current maximum label rate of 39 lb ai/acre is not. What is the maximum rate needed on turf? WE DON'T EVEN RECOMMEND CAPTAN USE ON TURF. THIS MAY NOT BE AN ISSUE. Question #3: Eye Washing Stations. Captan is a toxicity 1 eye irritant that may cause permanent damage to the cornea. The completed RED and WPS require an eye wash station within 1/4 mile of treated areas for at least 7 days (preferably 30 days) following treatment. Should the eye wash station be closer than 1/4 mile? Perhaps within 100 yards or immediately available? Would an eye wash fanny pack be useful? SMALL FANNY PACK EYEWASH STATIONS ARE PROBABLY THE ONLY OPTION HERE FOR HANDLERS. PUTTING AN EYEWASH STATION 1/4 MILE AWAY OR EVEN 100 FEET AWAY IS ALMOST USELESS TO THE PERSON WITH CHEMICAL IN THEIR EYES. CONSIDERING THAT MOST OF THE DAMAGE TO THE EYE IS DONE WITHIN THE FIRST FEW MINUTES OF CONTACT, HAVING TO WALK OR EVEN DRIVE 1/4 MILE COULD PROVE TO BE A TERRIBLE MISTAKE. IT COULD MEAN THE DIFFERENCE BETWEEN A HANDLER LOSING AN EYE VS. ONLY HAVING MINOR DAMAGE. THIS IS JUST NOT ACCEPTABLE, AT LEAST IN TERMS OF DIRECT CONTACT TO CHEMICAL DURING APPLICATION. AS FOR AFTER APPLICATION, I THINK IT IS VERY MUCH ACCEPTABLE. IT MIGHT EVEN BE OVERKILL SINCE THE CHEMICAL WILL LIKELY BE ONLY A DILUTE DRY RESIDUE ON THE FOLIAGE AND PRETTY MUCH UNLIKELY TO END UP IN THE EYE IN ANY KIND OF FORM TO CAUSE OCULAR DAMAGE. CAPTAN MAY BE A TOX CLASS 1 EYE IRRITANT DURING APPLICATION/MIXING AND LOADING, BUT I DON'T THINK THAT IS THE CASE AFTER DILUTION AND WHEN DRIED ON THE TREATED AREA.

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