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dc.contributor.authorBuccellato, L.
dc.contributor.authorByrne, M.J.
dc.contributor.authorFisher, J.T.
dc.contributor.authorWitkowski, E.T.F.
dc.date.accessioned2019-08-20T11:50:12Z
dc.date.available2019-08-20T11:50:12Z
dc.date.issued2019
dc.identifier.citationBuccellato, L., Byrne, M.J., Fisher, J.T. and Witkowski, E.T.F. (2019). Post-release evaluation of a combination of biocontrol agents on Crofton weed: testing extrapolation of greenhouse results to field conditions. Biocontrol 64, 457-468.en_ZA
dc.identifier.urihttp://hdl.handle.net/123456789/2709
dc.description.abstractTwo biocontrol agents, a leaf-spot pathogen, Passalora ageratinae, and a stem gall fly, Procecidochares utilis, have been released against Crofton weed, Ageratina adenophora (syn. Eupatorium adenophorum) (Asteraceae), in South Africa. This work reports the first post-release evaluation of the effect of both agents acting together in the field. A greenhouse trial using both agents had predicted an additive (beneficial) interaction between the agents. This study investigated if the additive interaction was present in the field. Four month old stems were exposed to one of the following three treatments (n = 20 plants per treatment): pathogen-only, pathogen plus single fly-galled, and pathogen plus double fly-galled, for 11 months. The interaction between the agents was equivalent to both agents acting independently (i.e. there was no additive effect on the weed’s growth). The greenhouse trails were therefore not predictive of field conditions.en_ZA
dc.language.isoenen_ZA
dc.subjectAgeratina adenophoraen_ZA
dc.subjectCrofton weeden_ZA
dc.subjectInsect-plant-pathogen interactionen_ZA
dc.subjectMultiple biocontrol agentsen_ZA
dc.subjectPassalora ageratinaeen_ZA
dc.subjectProcecidochares utilisen_ZA
dc.titlePost-release evaluation of a combination of biocontrol agents on Crofton weed: testing extrapolation of greenhouse results to field conditionsen_ZA
dc.typeArticleen_ZA


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