[USDA - APHIS - Newsroom: October 19, 2009] The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service is amending the noxious weed regulations by adding Old World climbing fern (Lygodium microphyllum (Cavanilles) R. Brown) and maidenhair creeper (Lygodium flexuosum (Linnaeus) Swartz) to the list of terrestrial noxious weeds. This action is necessary to prevent the artificial spread of these noxious weeds into the United States. This interim rule is published in the Oct. 19 Federal Register and becomes effective upon publication.