THE NSW Department of Primary Industries and Regional Development (DPIRD) has confirmed the first case of Varroa mite pyrethroid resistance in the state. Laboratory testing at the Elizabeth Macarthur Agricultural Institute identified a known genetic mutation, L925I, which causes pyrethroid resistance in Varroa mites. DPIRD Honey Bee Technical Specialist, Elizabeth Frost, said L925I significantly reduces […]
L925I significantly reduces the efficacy of pyrethroid miticides in managing affected mite populations.
