Climatic factors and mite predators influence on the tetranichids mite population in citrus

Authors

  • Luís Antônio Chiaradia Epagri/Centro de Pesquisa para Agricultura Familiar (Cepaf)
    • José Maria Milanez Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina
      • Cristiano Nunes Nesi Epagri/Centro de Pesquisa para Agricultura Familiar

        DOI:

        https://doi.org/10.52945/rac.v22i2.818

        Keywords:

        Eutetranychus banksi, Panonychus citri, Tetranychus mexicanus, Tetranychidae

        Abstract

        Texas citrus mite Eutetranychus banksi (McGregor), citrus red mite Panonychus citri (McGregor)
        and spider mite Tetranychus mexicanus (McGregor) (all Acari: Tetranychidae) are citrus pests that cause chlorotic spots on the leaves, provoke shoots’ death and make leaves and fruits fall. To know the population fluctuation and ecological aspects of these pests a study was conducted from July 2003 to June 2006 in a ‘Valencia’ citrus
        orchard situated in Chapecó, Santa Catarina State, Brazil. Biweekly the infestation of these mites was evaluated
        in 20 trees counting the number of these mites on three portions of their preferred locations by the use of lenses with increase by ten times and 1cm2 of the fixed field. The results showed that the infestation of the tetranichids mite decreases during periods with more rainfall and high predatory mite incidence, and increases with higher temperature.

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        Published

        2009-12-22

        Issue

        Vol. 22 No. 2 (2009)

        Section

        Scientific article

        License

        Copyright (c) 2009 Agropecuária Catarinense Journal

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        This work is licensed under a Creative Commons Attribution 4.0 International License.

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        How to Cite

        Climatic factors and mite predators influence on the tetranichids mite population in citrus. (2009). Agropecuária Catarinense Journal, 22(2), 52-56. https://doi.org/10.52945/rac.v22i2.818