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MADISON – Public comments are open through May 1 on a proposed pesticide registration for a special local need in Wisconsin, allowing carrot growers to use Nimitz® to control nematodes.

The registration would help growers control the three species of nematodes that cause injuries to carrots. Nematodes are microscopic worm-like organisms that live in the soil. The conditions caused by these three species reduce yields and deform carrots, making them less marketable to consumers.

One of the main products to control these nematodes is unavailable due to production outages, and other products are in short supply or are less effective. Nimitz is already used in Wisconsin on many other vegetable crops, but it is not labeled for use on carrots. This is why the manufacturer is seeking the special registration, with support from the University of Wisconsin-Madison Department of Plant Pathology.

Adama is the manufacturer, and the active ingredient is fluensulfone.

The preliminary environmental assessment indicates that the proposed registration will not require a full environmental assessment. This special registration will expire Dec. 31, 2021. The product has not previously had any special registrations.

For a copy of the assessment, contact Otto Oemig, DATCP, P.O. Box 8911, Madison, WI, 53708-8911, 608-224-4547, otto.oemig@wisconsin.gov. It is also available for review at the department Monday - Friday, 7:45 a.m.- 4:30 p.m., 2811 Agriculture Dr., Madison, second floor.

Comments received on or before 4:30 p.m., Monday, May 1, will become part of the preliminary environmental assessment record. Send comments to Otto Oemig by mail at the above postal or email address.

The special registration process allows states to register additional uses of pesticide products other than those listed on their labels, without prior federal approval. It helps growers address local pest problems that cannot be adequately controlled by any available federally registered product. These problems include insect outbreaks, fungal diseases, and grasses and weeds that outcompete crops.

Details about the special registration process are available at tinyurl.com/l4h7dhg.

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