Publikation: Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
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.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
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. 2000, 137(3), pp. 329-335. ISSN 0003-4746. eISSN 1744-7348. Available under: doi: 10.1111/j.1744-7348.2000.tb00074.xBibTex
@article{Roditakis2000-12Impro-39951, year={2000}, doi={10.1111/j.1744-7348.2000.tb00074.x}, title={Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour}, 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:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/39951"> <dc:creator>Charnley, Anthony K.</dc:creator> <dc:creator>Couzin, Iain D.</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-09-01T09:42:33Z</dc:date> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39951"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Franks, Nigel R.</dc:contributor> <dc:contributor>Couzin, Iain D.</dc:contributor> <dc:language>eng</dc:language> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/> <dc:contributor>Roditakis, Emmanouil</dc:contributor> <dcterms:issued>2000-12</dcterms:issued> <dc:contributor>Balrow, K.</dc:contributor> <dc:creator>Roditakis, Emmanouil</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-09-01T09:42:33Z</dcterms:available> <dc:creator>Franks, Nigel R.</dc:creator> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dcterms:title>Improving secondary pick up of insect fungal pathogen conidia by manipulating host behaviour</dcterms:title> <dc:creator>Balrow, K.</dc:creator> <dc:contributor>Charnley, Anthony K.</dc:contributor> <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> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/> </rdf:Description> </rdf:RDF>