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Discovery and testing of a climatically adapted strain ofLongitarsus jacobaeae [Col.: Chrysomelidae] for Australia

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Abstract

The Italian strain of the halticine,Longitarsus jacobaeae (Waterhouse), already successfully used in controlling ragwort,Senecio jacobaea L., in northern California, was considered ill-adapted to the climatic areas in Australia where ragwort infestations occur. A strain ofL. jacobaeae was found at Annonay, Central France where the climate is more appropriate. This strain was teste against a restricted group of composites,Acacia spp. andEucalyptus spp. to confirm its safety for introduction into Australia.

Résumé

La souche italienne du coléoptèreHalticinae, Longitarsus jacobaeae (Waterhouse), utilisée avec succès en Californie du Nord dans la lutte biologique contre le sénéçon,Senecio jacobaea L., a été jugée mal adaptée aux zones climatiques d'Australie infestées par le sénéçon. Une souche deL. jacobaeae a pu être trouvée à Annonay, dans le centre de la France, dont le climat est mieux adapté. Cette souche a été expérimentée sur un petit groupe de composées, surAcacia spp. et surEucalyptus spp. afin de confirmer sa spécificité pour son éventuelle introduction en Australie.

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  1. Biological Control Unit, CSIRO, 335 Ave Abbé P. Parguel, 34100, Montpellier, France

    A. J. Wapshere

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  1. A. J. Wapshere
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Wapshere, A.J. Discovery and testing of a climatically adapted strain ofLongitarsus jacobaeae [Col.: Chrysomelidae] for Australia. Entomophaga 28, 27–32 (1983). https://doi.org/10.1007/BF02372094

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  • DOI: https://doi.org/10.1007/BF02372094

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