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Effect of temperature on the developmental rate, longevity and parasitism of Aphidius ervi Haliday (Hymenoptera: Aphidiidae)

Author

Listed:
  • Radovan Malina

    (Department of Biology, Faculty of Natural Sciences, Matej Bel University, Banská Bystrica, Slovak Republic)

  • Ján Praslička

    (Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University, Nitra, Slovak Republic)

Abstract

Temperature-dependent development, longevity and parasitism of the parasitoid Aphidius ervi Haliday was measured at four constant temperatures between 15°C and 30°C using Aphis pomi de Geer as host. The thresholds for egg-mummy and mummy-adult development were 6.8°C and 3.9°C, respectively. Development into mummies required an average of 146.3 degree-days (DD), while development into adults took an average of 85.3 DD. Longevity was increasing linearly in the range from 15°C to 25°C (8-15 days), but was lower at 30°C (11 days). The relationship between parasitism, recorded as percent aphids mummified, and temperature was increasing at the temperatures 15-25°C, but decreasing at higher temperatures; 10.8% of the aphids were parasitised at 15°C, 15.9% at 25°C and 14.6% at 30°C. These results are compared with previously reported data on temperature-dependent development of A. ervi on a different host.

Suggested Citation

  • Radovan Malina & Ján Praslička, 2008. "Effect of temperature on the developmental rate, longevity and parasitism of Aphidius ervi Haliday (Hymenoptera: Aphidiidae)," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 44(1), pages 19-24.
    • Handle: RePEc:caa:jnlpps:v:44:y:2008:i:1:id:534-pps
    DOI: 10.17221/534-PPS
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