An assessment of population fluctuations of citrus pest woolly whitefly Aleurothrixus floccosus (Maskell, 1896) (Homoptera, Aleyrodidae) and its parasitoid Cales noacki Howard, 1907 (Hymenoptera, Aphelinidae): A case study from Northwestern Algeria

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dc.authorscopusid57204507165
dc.authorscopusid38361137500
dc.authorscopusid24400296200
dc.authorscopusid7005073772
dc.contributor.authorMahmoudi, Abdelhaq
dc.contributor.authorBenfekih, Leila Allal
dc.contributor.authorYigit, Abdurrahman
dc.contributor.authorGoosen, Mattheus F. A.
dc.date.accessioned2024-09-19T15:41:30Z
dc.date.available2024-09-19T15:41:30Z
dc.date.issued2018
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe aim of this study was to assess the effectiveness of the parasitoid Cales noacki Howard, 1907 (Hymenoptera, Aphelinidae) in the biological control of the citrus pest woolly whitefly, Aleurothrixus floccosus (Maskell,1896) in Northwestern Algeria. In particular the pest and parasitoid population fluctuations under different environmental conditions were investigated. The study was conducted by examination and sampling of whitefly adult populations on young shoots and catches as well as its parasitoid during a 12-month period by counting the parasite and infested-live larvae. Results showed remarkable variations in abundance indices and infestation rates of larvae and adults that depended on the growth flush in foliage and meteorological conditions of the region. The woolly whitefly manifested three flight periods coinciding with three growth flushes of orange sap; in autumn towards the end of September followed by mid-November with the highest average abundance of 10 individuals per branch and a third flight period in mid-May. Phases of growth flush seemed to have an effect on the temporal distribution of adults over the sampling period from July to June. Pest emergence appeared favorable at 12-20 °C as the minimum interval temperature whereas the maximum varied between 25-33 °C with humidity levels of 50 % and 75 %. As for the incidence of natural enemies on whiteflies, despite their abundance, their impact was not optimum due to the large fluctuations in number of whiteflies. Although the pest-parasitoid complex appears to be important in the orchard, the biological regulation exerted by C. noacki while effective is insufficient for the complete neutralization of citrus woolly whitefly A. floccosus. An integrated approach is needed using additional natural enemies associated with the woolly whitefly. © 2018 University of Ljubljana. All Rights Reserved.en_US
dc.identifier.doi10.14720/aas.2018.111.2.15
dc.identifier.endpage417en_US
dc.identifier.issn1581-9175
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85055822174en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage407en_US
dc.identifier.urihttps://doi.org/10.14720/aas.2018.111.2.15
dc.identifier.urihttps://hdl.handle.net/20.500.12483/14299
dc.identifier.volume111en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherUniversity of Ljubljanaen_US
dc.relation.ispartofActa Agriculturae Slovenicaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAleurothrixus floccosusen_US
dc.subjectBiological controlen_US
dc.subjectCales noackien_US
dc.subjectChlef Northwestern Algeriaen_US
dc.subjectCitrusen_US
dc.subjectPhenologyen_US
dc.subjectPopulation dynamicsen_US
dc.titleAn assessment of population fluctuations of citrus pest woolly whitefly Aleurothrixus floccosus (Maskell, 1896) (Homoptera, Aleyrodidae) and its parasitoid Cales noacki Howard, 1907 (Hymenoptera, Aphelinidae): A case study from Northwestern Algeriaen_US
dc.typeArticleen_US

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