Abstract
Seven species of Lepidoptera, common to alfalfa and peppermint in western Oregon, were tested as potential hosts forCotesia yakutatensis (Ashmead). Laboratory and field studies demonstrated that onlyAutographa californica (Speyer) andTrichoplusia ni (Hubner) were suitable. Percent parasitism, duration of oviposition, and number of parasitoids per host were highest whenC. yakutatensis was associated withA. californica.
Résumé
Sept espèces de Lépidoptères communes à la luzerne et à la menthe poivrée dans l'ouest de l'Orégon ont été essayées comme hôtes potentiels pourCotesia yakutatensis (Ashmead). Les études de laboratoire et de plein air démontrent que seulsAutographa californica etTrichophusia ni sont des hôtes possibles. Le pourcentage de parasitisme, la durée de la ponte et le nombre de parasitoides/hôte étaient les plus élevés quandC. yakutatensis était associé àA. californica.
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Miller, J.C., West, K.J. Host specificity ofCostesia yakutatensis [Hym.: Braconidae] on lepidoptera in peppermint and alfalfa. Entomophaga 32, 227–232 (1987). https://doi.org/10.1007/BF02373244
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DOI: https://doi.org/10.1007/BF02373244