Feeding preference of Macrolophus caliginosus (Heteroptera: Miridae) on Bemisia tabaci and Trialeurodes vaporariorum (Homoptera: Aleyrodidae)

Olivier Bonato, Louise Couton and Jacques Fargues
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Olivier Bonato: UMR CBGP - Centre de Biologie pour la Gestion des Populations - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - UM - Université de Montpellier - IRD [Occitanie] - Institut de Recherche pour le Développement - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier
Louise Couton: PISC - Physiologie de l'Insecte : Signalisation et Communication - INRA - Institut National de la Recherche Agronomique - UPMC - Université Pierre et Marie Curie - Paris 6 - INA P-G - Institut National Agronomique Paris-Grignon
Jacques Fargues: UMR CBGP - Centre de Biologie pour la Gestion des Populations - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - UM - Université de Montpellier - IRD [Occitanie] - Institut de Recherche pour le Développement - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier

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Abstract: A study of predation choices of Macrolophus caliginosus Wagner (Heteroptera: Miridae) late instars and adults, when offered various developmental stages (eggs and nymphs) of the recently established whiteßy Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), was made based on two preference indices. In addition, prey choices of late instars when presented with three ratios of Trialeurodes vaporariorum (Westwood) (Homoptera: Aleyrodidae) and B. tabaci at a similar developmental stage (eggs, young or late instars) were assessed.M. caliginosus preferred older nymphs of B. tabaci than any other stage. It also chose T. vaporariorum over B. tabaci, unless the latter consisted of _75% of the available prey. These results suggested that M. caliginosus might interfere with parasitoids such as Encarsia, Eretmocerus, or Amitus spp. because all three species emerge from the host pupal case. Furthermore, in mixed infestations, M. caliginosus preference for T. vaporariorum might either negatively affect the control of B. tabaci, or, contrarily, enhance the predator population, before a B. tabaci outbreak occurs in the greenhouse

Keywords: FEEDING PREFERENCE; MACROLOPHUS CALIGINOSUS; BEMISIA TABACI; TRIALEURODES VAPORARIORUM; INSECTE; BIOLOGIE DES POPULATIONS (search for similar items in EconPapers)
Date: 2006
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Published in Journal of Economic Entomology, 2006, 99 (4), pp.1143-1151

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02664241

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