In this episode of the Maine Farmcast, host Dr. Glenda Pereira sits down with Annie Leahy, a recent University of Maine zoology graduate and incoming Clemson University DVM student, to discuss her honors thesis on emerging pathogens affecting ruminant livestock in Maine. Leahy’s research analyzed cases submitted to UMaine’s Veterinary Diagnostic Lab between September 2022 and January 2025, covering 633 ruminant cases across cattle, goats, sheep and alpacas.

• UMaine Veterinary Diagnostic Lab
• UMaine Extension small ruminant programming

University of Maine Cooperative Extension is an equal opportunity institution and provider committed to nondiscrimination. For more information, visit extension.umaine.edu/nondiscrimination.

A pest that many producers thought was confined to the history books is making headlines again. In this episode, Dr. Colt Knight sits down with Ashley Wright of the University of Arizona Cooperative Extension to discuss New World screwworm, a devastating livestock pest that has reemerged in North America. They explain what screwworm is, how it differs from ordinary fly strike and why veterinarians and livestock producers are taking the threat so seriously.

The conversation covers the history of screwworm eradication, recent cases detected in the southern United States, impacts on cattle markets and cross-border livestock movement, and practical steps producers can take to protect their animals. From wound management and biosecurity to sterile fly control programs, this episode provides timely information every livestock owner should know as the industry works to prevent another major outbreak.

University of Maine Cooperative Extension is an equal opportunity institution and provider committed to nondiscrimination. For more information, visit extension.umaine.edu/nondiscrimination.

This Independence Day week, Dr. Colt Knight is joined by Dr. Dean Fish of Arizona’s Anchor F Cattle Co. to explore one of America’s most recognizable symbols: the cowboy hat. From John B. Stetson’s original design in the 1860s to today’s custom-crafted masterpieces, Colt and Dean trace the history, function and cultural significance of the hat that helped shape the American West. Along the way, they discuss cowboy etiquette, hat-making traditions, regional styles and why a good hat is much more than a fashion statement.

Whether you’re a lifelong cowboy, a weekend horse owner or someone who has never worn a hat, this conversation offers a fascinating look at the traditions, values and craftsmanship that continue to influence rural America. Pull up a chair, grab a slice of apple pie and join us as we celebrate Independence Day with a story that is uniquely American.