Abstract
The diamond-back moth,Plutella xylostella (L.) is a major pest of cruciferous crops in Trinidad, West Indies. Pesticides are applied as a control measure but it is now resistant to several of them. Indigenous parasitesApanteles aciculatus (Ashm.),Apanteles sp. (glomeratus group),Spilochalcis hirtifemora (Ashm.) andTrichogramma brasiliensis (Ashm.) are unable to exert economic control.Apanteles plutellae (Kurdj.) andTetrastichus sokolowskii Kurdj. were introduced and are now well established. It is recommended to introduce additional parasitesMacromalon sp. andThyraeella collaris (Grav.) in order to obtain complete biological control.
Résumé
La teigne des crucifères,Plutella xylostella (L.) est un des plus importants ravageurs des cultures de crucifères à Trinidad. Elle est maintenant résistante à la plupart des pesticides. Les parasites indigènesApanteles aciculatus (Ashm.),Apanteles sp. (du groupeglomeratus),Spilochalcis hirtifemora (Ashm.) etTrichogramma brasiliensis (Ashm.) ne sont pas capables de contrôler les populations.Apanteles plutellae (Kurdj.) etTetrastichus sokolowskii Kurdj. ont été introduits et sont maintenant bien acclimatés. On préconise d'introduire en plus les parasitesMacromalon sp. etThyraella collaris (Grav.) afin de parvenir à un contrôle complet.
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Yaseen, M. The establishment of two parasites of the diamond-back mothPlutella xylostella [Lep.: Plutellidae] in Trinidad, W.I.. Entomophaga 23, 111–114 (1978). https://doi.org/10.1007/BF02371716
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DOI: https://doi.org/10.1007/BF02371716