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  • Survivorship patterns of larvae of Pieris rapae (L.) (Lepidoptera: Pieridae) in Massachusetts kale, with special reference to mortality due to Apanteles glomeratus (L.) (Hymenoptera: Braconidae)
  • 作者: van Driesche, R.G
  • literature id: 46688
  • catalog nub: TPL_VANDRI1988SPOLO39704050
  • 文献库: Taxapad收录文献
  • type: article
  • publication name: Bulletin of Entomological Research
  • publish date: 1988-01-01
  • pages: 397-405
  • volume: 78
  • issue: 3
  • 创建时间: 2021-03-02 15:00:32
  • create by: zxmlmq (admin)
  • comment:

    none Survivorship curves for the pre-adult stages of Pieris rapae (L.) on kale in Massachusetts exhibited two patterns. Early season generations showed a linear decline with mortality in all stages, whereas late season generations showed reduced losses in larval instars 2-4 and a concentration of mortality in the fifth instar. Ratios of direct measurement of recruitment of P. rapae and its parasitoid Apanteles glomeratus (L.) to their first larval and egg-plus-larval stages, respectively, indicated that losses to parasitism for five host generations were 86 multiplied by 1, 9 multiplied by 1, 58 multiplied by 0, 71 multiplied by 7 and 40 multiplied by 3% for the 1985 third generation and the 1986 first to fourth generations.

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