Quercivorol as a lure for the polyphagous and Kuroshio shot hole borers, spp. nr. (Coleoptera: Scolytinae), vectors of Fusarium dieback.

The polyphagous shot hole borer and Kuroshio shot hole borer, two members of the species complex (Coleoptera: Curculionidae: Scolytinae), are invasive ambrosia beetles that harbor distinct species of fungal symbionts. Together with the damage caused by gallery construction, these two phytopathogenic species are responsible for the emerging tree disease Fusarium dieback, which affects over 50 common tree species in Southern California. Host trees suffer branch dieback as the xylem is blocked by invading beetles and fungi, forcing the costly removal of dead and dying trees in urban areas.