By Gary Stone, Extension Educator Invasive Resistant Pest Issue Team
Last year in another state, 14 horses died and another 100 were sickened from hay that contained blister beetles. Usually Blister beetles are not a problem, but growers should be aware of the insect and what to scout for in their fields.
The Pest: The blister beetle (scientific name Epicauta spp., order Coleoptera, family Meloidae) includes several species: ash-gray blister beetle (Epicauta fabricii), black blister beetle (Epicauta pennsylvania), three-striped blister beetle (Epicauta vittata), and spotted blister beetle (Epicauta maculata).