Wing form determination and sensitivity of stages to environmental factors in the oriental chinch bug, Cavelerius saccharivorus Okajima (Heteroptera : Lygaeidae)

  • FUJISAKI K
    Okinawa Prefectural Agricultural Experiment Station

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Preliminary experiments to determine the environmental factors responsible for the wing form and the related sensitivity of stages were conducted in the oriental chinch bug, Cavelerius saccharivorus. High temperature, long photoperiod, and crowding in the nymphal stage stimulated the appearance of macropters. Conversely, low temperature, short photoperiod, and isolation favoured for the appearance of branchypters. Until the early 5th instar, the nymphal stage was sensitive to temperature and/or photoperiod, whereas later instars(4th to 5th) were more sensitive to nymphal crowding than earlier ones (1st to 3rd). The envirinmental control of wing form determination on this species is discussed in relation to the life cycle and seasonal fluctuation in number of the field population.

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詳細情報

  • CRID
    1573387451703934976
  • NII論文ID
    110001104340
  • NII書誌ID
    AN00346079
  • ISSN
    00036862
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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