Biological effects of the entomopathogenic fungus,Beauveria bassiana on the potato tuber mothPhthorimaea operculella (Seller)

  • M. Hafez
  • F. N. Zaki
  • A. Moursy
  • M. Sabbour


A series of investigations have been carried out on the effect of the entomopathogenic fungusBeauveria bassiana on the various developmental stages ofPhthorimaea operculella. Both first and second insatar larvae were more susceptible than the third or fourth instars. The infected prepupae and pupae resulted in marked decrease in the emergence, longevity of moths, deposited eggs and their egg hatchability. An obvious increase in the pupal duration was observed and the resulting malformed adults were also recorded. The latent effects were markedly obvious, specially in high doses ofBeauveria bassiana.


Plant Physiology Developmental Stage Plant Pathology Biological Effect Latent Effect 
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Copyright information

© Blackwell Wissenschafts-Verlag 1997

Authors and Affiliations

  • M. Hafez
    • 1
  • F. N. Zaki
    • 2
  • A. Moursy
    • 1
  • M. Sabbour
    • 2
  1. 1.Entomology Dept., Faculty of ScienceCairo UniversityCairoEgypt
  2. 2.Plant Protection Dept.National Research CentreCairoEgypt

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