Species composition of tetranychid mites (Tetranychidae) and predatory mites (Phytoseiidae) occurring on raspberry plantations in Poland
2003
Gajek, D. (Research Institute of Pomology and Floriculture, Skierniewice (Poland). Dept. of Plant Protection)
Field studies on the occurrence, species composition, and density of populations of tetranychid mites (Tetranychidae) and phytoseiid mites (Phytoseiidae) in different areas of raspberry growing in Poland was carried out in 2000-01. Leaf samples were collected from 71 plantations located in five of the main regions of Polish raspberry production. There were clear differences in the densities of tetranychid mite populations between regions, with raspberry spider mite Neotetranychus rubi (Trag.) being more numerous than two-spotted spider mite Tetranychus urticae (Koch.) in most except the Skierniewice region. Among the phytoseiid mites collected from raspberry leaves, eleven species were identified. Although their occurrence and species composition varied with region, Amblyseius bryophilus Karg, Euseius finlandicus (Oudemans) and Amblyseius andersoni (Chant) were the most common, each species occurred at least in three regions. Results obtained showed good prospects for the deployment of the phytoseiids in biological control of spider mites on raspberry
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