Outbreaks of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) are caused by broad-spectrum insecticide spraying in apple orchards

@article{Funayama2014OutbreaksOT,
  title={Outbreaks of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) are caused by broad-spectrum insecticide spraying in apple orchards},
  author={K. Funayama},
  journal={Applied Entomology and Zoology},
  year={2014},
  volume={50},
  pages={169-174}
}
  • K. Funayama
  • Published 2014
  • Biology
  • Applied Entomology and Zoology
In this study I investigated whether the resurgence of Tetranychus urticae Koch in apple orchards in Akita Prefecture has occurred because of broad-spectrum insecticide spraying. Plots of two management types were established. Plot A was managed for conservation of phytoseiid mites by selective chemical spraying without mowing in both 2012 and 2013. Plot B was managed by not mowing in either year, with selective chemical spraying in 2012 and spraying of pyrethroids at two-week intervals from… Expand

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