06/09/2026
The USDA and AAEP have updated guidelines on the emerging Screwworm situation in Texas USA. The USDA MythBusters are shown below, and AAEP has online resources at: https://aaep.org/guidelines-resources/new-world-screwworm/
AAEP lists the following as EPA registered products/pesticides affective against screwworm for equine:
Claire Bed Bug, Lice and Dust Mite Spray (PLZ Corp.) - Active Ingredient: Permethrin
Co-Ral Coumaphos Flowable Insecticide (Elanco US, Inc.) - Active Ingredient: Coumaphos
Permethrin Insecticide Spray (Elanco US, Inc.) - Active Ingredient: Permethrin