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Host-Induced Augmented Reproduction in Spotted Bollworm, Earias Vittella (Fabricius) (Lepidoptera: Noctuidae)

  • A. J. Tamhankar
  • K. K. Gothi
  • G. W. Rahalkar
Research Article

Abstract

Mating and oviposition of Earias vittella was studied in the absence or presence of the host (okra fruit) or the host odour. When the host was accessible, there was a significant increase in the frequency of copulation, the number of spermatophores transferred and the number of eggs oviposited. Availability of host odour, instead of the host, gave similar results. Further, in general, the number of eggs oviposited by a female was significantly correlated with its mating frequency.

Key Words

Spotted bollworm Earias vittella mating frequency fecundity host host-odour okra fruit 

Résumé

On a etudié l’accouplement et la ponte d’Earias vittella en présence ou en absence de l’hote (gombo) ou quand les adultes ont recu l’odeur de l’hôte. Quand l’hôte était accessible, il y avait une augmentation significative dans la fréquence de copulation, le nombre de spermatophores transferés et le nombre d’ouefs pondus. La disponibilité de l’odeur de l’hôte au lieu de l’hôte, a donné les mêmes resultats.

De plus, en générale, le nombre d’oeufs pondus par la femelle était en corrélation significative avec la frequence de son accouplement.

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Copyright information

© ICIPE 1993

Authors and Affiliations

  • A. J. Tamhankar
    • 1
  • K. K. Gothi
    • 1
  • G. W. Rahalkar
    • 1
  1. 1.Nuclear Agriculture Division Bhabha Atomic Research CentreTrombayIndia

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