EHD and bluetongue are spread in cattle, deer and other ruminants by several species of a tiny flying insect in the genus Culicoides. Call it a gnat, a midge, a no-see-um, or any other local name, this is the tiny fly with the big bite. Three species are the primary vectors, or transmitters, of HD viruses, but one of them is considered the most significant vector and the one we know the most about: Culicoides sonorensis.


“If I wanted to find the larvae of this insect, I’d look in a cattle pond,” said Ed. “Captive deer create the same kind of situation, it isn’t just cattle.”

Can We Prevent EHD?...
www.qdma.com/articles/can-we-prevent-ehd