The Biology, Ecology, and Management of the Hazelnut-Feeding Weevils (<i>Curculio</i>spp.) (Coleoptera: Curculionidae) of the World

Abstract Certain species of acorn- and nut-feeding weevils, Curculio spp. (Coleoptera: Curculionidae), have become significant insect pests cultivated hazelnuts (Corylus spp.) (Fagales: Betulaceae) worldwide. The significance weevils that feed on injure is increasing as countries such the United States China continue to develop hybrids hazel plants increase their hazelnut production. This review focuses ecology, impact, management, identification four known hazelnut-injuring throughout world: dieckmanni (Faust), nucum L., obtusus Gibson (the weevil), occidentis (Casey) filbert weevil).