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Serving: WI

Measures Taken to Protect Karner Blue Butterfly

Limitations placed on use of chemical on cranberries.

EPA, in consultation with the U.S. Fish and Wildlife Service (USFWS), is imposing limitations on the use of methoxyfenozide on cranberries in Wisconsin because of its potential effect on the endangered Karner blue butterfly. The limitations are contained in a series of county-specific Endangered Species Protection Bulletins (Bulletins) that are available on EPA's Web site at: or by calling 1-800-447-3813.

Bulletins are the implementation tool of EPA’s Endangered Species Protection Program (ESPP) and provide information to pesticide users about enforceable use limitations necessary to protect listed species and their designated critical habitat from potential harm due to the use of a pesticide. The ESPP is designed to address EPA's responsibilities under the Endangered Species Act (ESA), while at the same time not placing unnecessary burden on the agriculture community and other pesticide users.

EPA entered into consultation with USFWS after determining that use of methoxyfenozide on cranberries in Wisconsin may affect the listed Karner blue butterfly. USFWS recommended a number of use limitations that, when implemented, would result in use that is not likely to adversely affect the KBB. These limitations are effective within specific areas of the following Wisconsin counties:

Eau Claire
Green Lake

In addition to the Bulletins that contain instructions for protection of the KBB in Wisconsin, EPA is also releasing Bulletins for six counties in Michigan (Allegan, Monroe, Montcalm, Muskegon, Newaygo, and Oceana) for protection of the KBB, and for Door County, WI, for protection of the endangered Hines emerald dragonfly. These Bulletins were not the result of consultation with USFWS; rather they simply implement current methoxyfenozide label restrictions through the Bulletins Live!online system.

These Bulletins are effective and enforceable once referenced on the methoxyfenozide product label. The Bulletins are available for use beginning in May 2009. More information on the ESPP program in general is available at: Information on how to use the Bulletins Live! system and a tutorial are also available on EPA's Web site.

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