
New World Screwworm: Understanding the Threat to Livestock and the Food System
In this episode, Dr. Maxwell Scott joins us to unpack the New World Screwworm and why this parasitic fly is an important concern for livestock producers and animal health. Dr. Scott explains how Screwworm affects animals, why it is difficult to control, and how the United States successfully eradicated it through the use of the sterile insect technique. We also explore the pest’s recent re-emergence in Mexico and Texas, the biological and ecological factors that could influence its spread, and what an outbreak could mean for livestock producers and the broader food system. The conversation highlights Dr. Scott’s research developing genetically engineered male-only strains that could make sterile insect programs more efficient, as well as emerging approaches using CRISPR to sterilize males and gene drives to suppress insect populations. Dr. Scott also discusses how these technologies are being evaluated for responsible use and why continued innovation will be important for managing Screwworm in the future. Learn more about Dr. Scott’s work below: NC State Bio Page: https://cals.ncsu.edu/entomology-and-plant-pathology/people/mjscott3/ Check out the following resources to learn more about today’s topic: Max Scott Lab: https://maxscottlab.wordpress.ncsu.edu/ Genetic Engineering and Society Center at NC State: https://ges.research.ncsu.edu/ Gene Convene Webinar: https://www.youtube.com/watch?v=ON960H5VFgI North Central IPM Webinar: https://www.youtube.com/watch?v=Sw6ferJh3TM USDA- NovoFly Q&A: https://www.aphis.usda.gov/novofly-questions-answers Article- An early female lethal system of the New World screwworm, Cochliomya hominivorax, for biotechnology-enhanced SIT: https://link-springer-com.prox.lib.ncsu.edu/article/10.1186/s12863-020-00948-x The Science That Feeds Us podcast brings together extension agents, faculty specialists, and scientists for interdisciplinary conversations on emerging trends in agriculture and the food system. Designed to inform and engage both professionals and curious consumers, we highlight the stories behind the science to build deeper connections to food and agriculture research. The Science That Feeds Us is supported by NC State Extension and NC State University. Visit https://units.cals.ncsu.edu/food-systems-comm-hub/ for more information. Edited and Produced by: Bhavisha Gulabrai Music: Podcast theme music by Transistor.fm. Learn how to start a podcast here.