Iowa cattle farmers prepared for the New World screwworm as the parasitic fly moves north

Grassley warns screwworm threat could hurt Iowa beef trade

Iowa Sen. Chuck Grassley says he is concerned about the spread of New World screwworm and the possibility of the parasite reaching Iowa.

IDALS issues guidance on New World Screwworm protection - The Hamburg Reporter

Press Release The Iowa Department of Agriculture and Land Stewardship (IDALS) issued the following guidance for livestock producers, pet owners, and veterinarians to help protect… Login to continue reading Login Sign up for complimentary access Sign Up Now Close

Iowa officials urge screwworm vigilance as cases emerge in Texas

The Iowa Department of Agriculture and Land Stewardship on Tuesday urged livestock producers, pet owners and veterinarians to watch for signs of New World screwworm infestations after multiple recent detections in Texas and the Southwest.

Iowa Department of Agriculture and Land Stewardship Issues Guidance to Protect Animals from New World Screwworm

DES MOINES, Iowa (June 9, 2026) - The Iowa Department of Agriculture and Land Stewardship (IDALS) issued the following guidance for livestock producers, pet owners, and veterinarians to help protect animals from the parasitic New World Screwworm (NWS) fly. The…

Iowa warns animal owners about New World Screwworm spread

The Iowa Department of Agriculture and Land Stewardship is urging livestock producers and pet owners to watch for signs of New World Screwworm after cases were found in Texas livestock and a dog in New Mexico.

Iowa cattle farmers prepared for the New World screwworm as the parasitic fly moves north