From ???@??? Mon Jul 13 10:02:27 1998 Date: Thu, 9 Jul 1998 09:38:37 -0400 (EDT) From: Sally McDonald Subject: Re: WPS in Research Plots To: "Mary L. Ketchersid" Content-Length: 1528 Lines: 31 On Wed, 27 May 1998, Mary L. Ketchersid wrote about WPS requirements for researchers at agricultural experiment stations. Perhaps I can help. If the labeling for the product being applied contains the WPS agricultural use requirements box that requires users to comply with the WPS, then the researchers must comply with the WPS. Some experimental products do not yet contain the WPS labeling and in those instances the researchers need not comply with WPS requirements. (In my opinion, however, they should for their own safety, the safety of other workers, and to set a positive example as an educational institution.) If WPS is required, central notification is required. Unless the labeling requires both posting at the treated area and oral warnings to workers, the researchers have the option whether to post treated areas or orally warn workers. From the size and number of the plots described, my guess is that it would be faster and easier to post the plots than to deliver (and have understood) the information orally to workers. Treated areas need not be posted if no workers will be in the treated area or walk within 1/4 mile of the treated area on the research facility during application or while the REI is in effect. Oral warnings need not be given to any worker who will not be in the treated area or walk within 1/4 mile of a treated area during the application or while the REI is in effect. I hope this helps. Sally -- Sally A. McDonald, Information Impact 5837 Tartan Circle, Dublin, OH 43017 From ???@??? Mon Jul 13 10:02:28 1998 Date: Thu, 9 Jul 1998 09:52:04 -0400 (EDT) From: Sally McDonald Subject: Re: Gloves recommendation for Prowl To: Anne Macmillan Content-Length: 1934 Lines: 40 On Mon, 8 Jun 1998, Anne Macmillan wrote: > I have a question regarding the Prowl Label (a.i. pendimethalin), > specifically regarding the gloves recommended for use by applicators. > The label calls for Barrier Laminate or Viton = or > 14 mils. Some > people in the industry have told me that nitrile = barrier laminate, but > I do not think this is the case. Labels either state barrier laminate, > OR nitrile. Are the 2 interchangeable? I have heard of breakthrough when > using nitrile gloves while handling prowl. What is definition of barrier > laminate,and where can I purchase such gloves? Perhaps I can help. Barrier laminate does not equal nitrile. Barrier laminate is a lightweight laminate glove that looks like foil. It is the same material as the bag that holds the peanuts served on commercial plane flights. It resists permeation and breakthrough to nearly all pesticide formulations. Some of the brand names for barrier laminate gloves are Silver Shield and 4-H. Since these gloves are flat and are not molded to a hand shape, some wearers find them clumsy to wear for some kinds of tasks. Therefore many users wear fitted rubber gloves over barrier-laminate gloves for comfort, protection, and dexterity. I believe Gempler's (800-382-8473) carries them. Ask them for "barrier laminate foil-type gloves." One more note. Nitrile gloves can be worn while handling prowl in certain situations. If the Prowl labeling lists as the chemical resistance category either letter G or H, then nitrile gloves are classified as providing "slight" resistance to Prowl formulations. Nitrile gloves can be worn for short-term tasks as long as they are cleaned or replaced within 10 minutes of contact with the chemical. EPA's chemical resistance category selection chart will give you this information. I hope this helps! Sally -- Sally A. McDonald, Information Impact 5837 Tartan Circle, Dublin, OH 43017 From ???@??? Thu Jul 16 10:14:29 1998 From: "Boeniger, Mark F." To: "'WPS Forum'" Subject: Measuring Foliar Wetness Date: Wed, 15 Jul 1998 16:21:23 -0400 Content-Length: 440 Lines: 12 I am hoping that someone might advise me on how I might objectively measure the moisture level on crop foliage, such as when there is a morning dew on the surface. I think this might be important if foliage moisture could affect the rate of transfer of pesticide residues to the hands and clothing of harvesters. Any advise on this is appreciated. Mark Boeniger NIOSH, R-14 Cincinnati, OH 45226-1998 tel: 513/841-4421 fax: 513/841-4486