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Entomopathogenic nematodes Heterorhabditis spp and Steinernema anomali as potential antagonists of the biological weed control agent Hylobius transversovittatus Coleoptera Curculionidae



Entomopathogenic nematodes Heterorhabditis spp and Steinernema anomali as potential antagonists of the biological weed control agent Hylobius transversovittatus Coleoptera Curculionidae



Journal of Invertebrate Pathology 58.3: 453-454



Purple loosestrife (Lythrum salicaria ) has been considered a noxious weed in North American wetlands ever since the plant was introduced from Europe some 200 years ago. A biocontrol project has been initiated by the U.S. Fish and Wildlife Service, the U.S. Department of Agriculture, and the European Station, CAB International Institute of Biological Control (Switzerland) to study, screen, and introduce host specific herbivorous insects from the weed's native range. The most promising of five potential candidates is the weevil, Hylobius transversoviattatus , because it mines within the root stocks of this perennial weed. In contrast to other species in the genus Hylobius investigations on potential natural enemies of H. transversovittatus revealed that the larvae and adults are free from insect parasitoids. The eggs, however, are parasitized by Anaphes dorcas (Hymenoptera: Myrmaridae). Reports on the biological control of H. abietis with steinernematid nematodes raised the question whether or not entomopathogenic nematodes in the genera Steinernema and Heterorhabditis are potential antagonists of H. transversovittatus .

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Accession: 037245518

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DOI: 10.1016/0022-2011(91)90194-u


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