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A comparison of rearing methods for the banana weevil, Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) on its natural host

  • A. M. Koppenhöfer (a1) and K. V. Seshu Reddy (a2)

Abstract

Simple methods for production of all life stages of the banana weevil on its natural diet, banana rhizome and pseudostem are presented. Their effectiveness, labour demands and applicability for different purposes are discussed. The most effective method for the production of eggs, pupae and adults is the utilization of the rhizome part of suckers, whereas larvae are easier to recover from pseudostem. The hatchability of the eggs produced is high.

Des méthodes simple sont présentées pour la production de tous les stades du charançon du bananier dans son régime naturel, le rhizome et le pseudotronc du bananier. Leur effectivité, dépense en temps et applicabilité pour des objectifs differents sont discutées. La méthode la plus effective pour la production d'oeufs, de pupes et d'adultes est celle utilisant le rhizome des rejets, tandis que les larves sont plus facilement récupérées du pseudotronc. Le pourcentage d'oeufs éclorants est élevé.

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Beccari, F. (1967) Contributo alia conoscenza del Cosmopolites sordidus (Germar) (Coleoptera, Curculionidae). Riv. Agric. Subtrop. trop. 61, 131150.
Cuillé, J. (1950) Recherches sur le charançon du bananier Cosmopolites sordidus Germar. Institut Françaisde Agriculture coloniale, Serie technique 4, pp. 225.
Froggatt, J. L. (1924) Banana weevil borer. Queensland Agric. J. 22, 154156.
Longoria, A. (1968) Diferencias sexuales en la morfologia externa de Cosmopolites sordidus Germar (Coleoptera, Curculionidae). Ciencias Biologicas 1, 111.
Parnitzki, P. (1992) Biologische Bekämpfung des Rüsselkäfers Cosmopolites sordidus (Germar) mit entomopathogenen Nematoden der Gattungen Heteror habditis und Steinernema sowie Untersuchungen zur Biologie des Schädlings. Doctoral Thesis, University of Bonn.
Roth, L. M. and Willis, E. R. (1963) The humidity behaviour of Cosmopolites sordidus (Coleoptera, Curculionidae). Ann. Entomol. Soc. Am. 96, 4152.
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Treverrow, N. L. and Maddox, C. (1992) The distribution of Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) between various types of banana plant material in relation to crop hygiene. Gen. Appl. Entomol. 23, 1620.
Vilardebo, A. (1984) Problemes scientifiques poses par Radopholus similis et Cosmopolites sordidus en cultures bananieres de zones francophones de production. Fruits 39, 227233.

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A comparison of rearing methods for the banana weevil, Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) on its natural host

  • A. M. Koppenhöfer (a1) and K. V. Seshu Reddy (a2)

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