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Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour

Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour

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RODITAKIS, Emmanouil, Iain D. COUZIN, K. BALROW, Nigel R. FRANKS, Anthony K. CHARNLEY, 2000. Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour. In: Annals of Applied Biology. 137(3), pp. 329-335. ISSN 0003-4746. eISSN 1744-7348

@article{Roditakis2000-12Impro-39951, title={Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour}, year={2000}, doi={10.1111/j.1744-7348.2000.tb00074.x}, number={3}, volume={137}, issn={0003-4746}, journal={Annals of Applied Biology}, pages={329--335}, author={Roditakis, Emmanouil and Couzin, Iain D. and Balrow, K. and Franks, Nigel R. and Charnley, Anthony K.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/39951"> <dc:creator>Roditakis, Emmanouil</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-09-01T09:42:33Z</dc:date> <dc:creator>Franks, Nigel R.</dc:creator> <dcterms:issued>2000-12</dcterms:issued> <dcterms:abstract xml:lang="eng">It is often assumed that efficient application of a mycoinsecticide involves hitting the target pest insect directly with a lethal dose of conidia. However, secondary pick-up of conidia from surrounding vegetation may be a more important source of inoculum. We have investigated ways of increasing conidia acquisition by enhancing host movement. The aphid alarm pheromone, E-β-farnesene, significantly increased mortality among peach potato aphids. Myzus persicae Sulzer, that were exposed for 24 h to discs of green pepper leaf sprayed with conidia of Verticillium lecanii (Zimmerman) Viegas then transferred to fresh untreated discs to allow disease development. A more practical approach to increasing conidia pick-up appears to be the use of sub-lethal doses of the chloronicotinyl insecticide imidacloprid. One percent of the recommended dose, applied systemically, dramatically increased aphid movement; quantified by image analysis of videotaped aphid behaviour. This resulted in greater mortality from mycosis in experiments where aphids were exposed to insecticide-treated leaf discs that had been sprayed with fungal conidia. A comparison with results from an experiment where conidia were sprayed directly onto aphids which were feeding on insecticide-infused pepper discs established that synergy was due to an indirect effect of the insecticide, i.e. through increased movement, rather than a direct effect viz. predisposition of insecticide-weakened insects to disease.</dcterms:abstract> <dc:language>eng</dc:language> <dc:creator>Balrow, K.</dc:creator> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39951"/> <dc:creator>Couzin, Iain D.</dc:creator> <dc:creator>Charnley, Anthony K.</dc:creator> <dcterms:title>Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour</dcterms:title> <dc:contributor>Roditakis, Emmanouil</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-09-01T09:42:33Z</dcterms:available> <dc:contributor>Balrow, K.</dc:contributor> <dc:contributor>Franks, Nigel R.</dc:contributor> <dc:contributor>Couzin, Iain D.</dc:contributor> <dc:contributor>Charnley, Anthony K.</dc:contributor> </rdf:Description> </rdf:RDF>

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