Integrated pest management of Byctiscus betulae Linne, 1758 (Coleoptera: Rhynchitidae) in Odobesti Vineyard, Vrancea County (Romania)

In Romania, Byctiscus betulae (Linne, 1758) was for a long time mentioned only as a part of the fauna, without economic importance, but lately in some vineyard, their population's outbreak has been noticed. Our investigations took place between 2000 and 2002, in the vineyard Odobesti, Vrancea County. We analyzed the numeric abundance of the Byctiscus betulae adults and the "cigarettes" produced by their females from vine leaves, the female's preference to lay its eggs on different vine sorts, the parasitic degree of the Byctiscus betulae eggs by the oophagous parasitoid Poropoea minkiewiczi Now. (Trichogrammatidae, Chalcidoidea, Hymenoptera). Based on the field and lab researches has been promoted a new approach to the integrated control of Byctiscus betulae pest populations. This approach emphasizes the integration of the agrophytotechnic methods (the selection and cultivation of sorts and hybrids of vine with any resistance against the pest attack), the soil works, some mechanic, physical and biological methods (oophagous parasitoid action).