THE U.S. Environmental Protection Agency has authorized Section 18 emergency exemptions for the active ingredients myclobutanil and propiconazole to be used in Mississippi for the control of soybean rust.

Use of myclobutanil, marketed under the brand names Laredo EC and Laredo EW fungicides, and propiconazole, marketed under the brand name PropiMax EC fungicide, will not be allowed until the presence of soybean rust has been confirmed in the continental United States by USDA's Animal and Plant Health Inspection Service. Under this Section 18, use of the systemic triazole fungicides will be limited to a maximum of two applications.

In addition to Mississippi, the following states have also accepted Section 18 emergency exemptions for myclobutanil and propiconazole: Minnesota, South Dakota, North Dakota, Iowa, Illinois, Kentucky, New York and Maryland.