Mite diversity (Acari: Tetranychidae, Tydeidae, Iolinidae, Phytoseiidae) and within-tree distribution in citrus orchards in southern Spain, with special reference to Eutetranychus orientalis

摘要: Mite diversity of selected citrus orchards in Andalusia (southern Spain) was studied during 2002–2007. The following species were found: Eutetranychus orientalis, Tetranychus urticae, Panonychus citri (Tetranychidae), Tydeus californicus, Lorryia formosa (Tydeidae), Pronematus ubiquitus (Iolinidae), Euseius stipulatus, Typhlodromus phialatus, Neoseiulus scutalis, Phytoseiulus persimilis, Paraseiulus talbii and cucumeris (Phytoseiidae). orientalis the dominant tetranychid orange lemon trees, whereas T. urticae slightly more abundant mandarines. most tydeid clementine it L. formosa. iolinid P. found very low numbers. With respect to phytoseiids, E. stipulatus three species. had a unimodal phenology, peaking only autumn, other two tetranychids maxima. californicus showed one or peaks depending upon species, also peaks, spring autumn. mites displayed non-random distribution tree. preferred outer upper leaves. On contrary, tydeids (mainly californicus) phytoseiids stipulatus) inner lower These preferences not been sufficiently described previously, they are important for sampling plans.