Karnal Bunt; Regulated Areas

We are amending the Karnal bunt regulations to make changes to the list of areas or fields regulated because of Karnal bunt, a fungal disease of wheat. We are adding certain areas in Arizona and Texas to the list of regulated areas either because they were found during surveys to contain a bunted wheat kernel, or because they are within the 3-mile-wide buffer zone around fields or areas affected with Karnal bunt. We are also removing certain individual fields and other areas from the list of regulated areas in Arizona, New Mexico, and Texas, either because recently completed detection and delineating surveys show them to be free of Karnal bunt, or because they have not been used to produce Karnal bunt host crops within the last 5 years, or because they have been used to produce Karnal bunt host crops in 1 or more years following initial regulation and the crops have been tested and found free of Karnal bunt. These actions are necessary to help prevent the spread of Karnal bunt into noninfected areas of the United States, and to relieve restrictions that are no longer warranted.