Abstract
Fourth and 5th instar larvae ofHeliothis armigera (Hübner) parasitised byEucelatoria bryani Sabrosky consumed significantly less chickpea flour diet than unparasitised larvae of the same age in the laboratory. Significant reduction in diet consumption, larval weight gain and frass produced at 24 and 48 h following parasitisation was observed in 5th instar host larvae. Parasitised larvae retained a greater percentage of food ingested (AD) than did the unparasitised ones. Unparasitised 5th instar larvae ofH. armigera were more efficient in converting the ingested food (ECI) and digested food (ECD) into body substance than larvae of similar age parasitised byE. bryani.
Résumé
Des larves du 4e et 5e stades deHeliothis armigera (Hübner) parasitées parEucelatoria bryani Sabrovsky consomment en laboratoire significativement moins d'un aliment à base de farine de pois chiche que des larves non parasitées du même âge. Une réduction significative de l'alimentation, du gain de poids des larves et des déjections produites après 24 et 48 h de parasitisme a été constatée chez des, larves hôtes du 5e stade. Les larves parasitées ont une meilleure capacité de rétention de la nourriture ingérée (AD) que celles qui ne sont pas parasitées. Les larves du 5e stade deH. armigera non parasitées ont des capacités supérieures de conversion de la nourriture ingérée (ECI) et digérée (ECD) en substance corporelle que les insectes du même âge parasités parE. bryani.
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Contribution No 1287 of the Indian Institute of Horticultural Research, Bangalore-80.
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Mani, M., Nagarkatti, S. & Narayanan, K. Influence of parasitism byEucelatoria bryani [Dip.: Tachinidae] on the consumption and utilisation of chickpea flour diet byHeliothis armigera [Lep.: Noctuidae] . Entomophaga 27, 399–404 (1982). https://doi.org/10.1007/BF02372062
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DOI: https://doi.org/10.1007/BF02372062