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Citrus black spot is absent in the Western Cape, Northern Cape and Free State Provinces

dc.contributor.authorCarstens, Elmaen_ZA
dc.contributor.authorLe Roux, Hendrik F.en_ZA
dc.contributor.authorHoltzhausen, Michael A.en_ZA
dc.contributor.authorVan Rooyen, Liezlen_ZA
dc.contributor.authorCoetzee, Joeyen_ZA
dc.contributor.authorWentzel, Riaen_ZA
dc.contributor.authorLaubscher, Wilhelmen_ZA
dc.contributor.authorDawood, Zorinaen_ZA
dc.contributor.authorVenter, Elritaen_ZA
dc.contributor.authorSchutte, Gerhardus C.en_ZA
dc.contributor.authorHattingh, Vaughanen_ZA
dc.contributor.authorFourie, Paul H.en_ZA
dc.date.accessioned2013-07-03T08:18:35Z
dc.date.available2013-07-03T08:18:35Z
dc.date.issued2012-07-04
dc.identifier.citationSouth African Journal of Science
dc.identifier.citationCarstens, E. et al. 2012. Citrus black spot is absent in the Western Cape, Northern Cape and Free State Provinces. South African Journal of Science, 108(7/8), Art. #876, doi: 10.4102/sajs.v108i7/8.876.
dc.identifier.issn1996-7489 (online)
dc.identifier.otherdoi: 10.4102/sajs.v108i7/8.876
dc.identifier.urihttp://hdl.handle.net/10019.1/81093
dc.descriptionCITATION: Carstens, E. et al. 2012. Citrus black spot is absent in the Western Cape, Northern Cape and Free State Provinces. South African Journal of Science, 108(7/8), Art. #876, doi: 10.4102/sajs.v108i7/8.876.
dc.descriptionThe original publication is available at http://sajs.co.za
dc.description.abstractThe South African citrus industry is strongly focused on exports and South Africa is a signatory member of both the World Trade Organisation Agreement on the application of Sanitary and Phytosanitary Measures and the International Plant Protection Convention. Citrus black spot, caused by Guignardia citricarpa, does not occur in all the South African citrus production areas and, therefore, South Africa has a responsibility to provide those trading partners that have identified G. citricarpa as a regulated pest with reliable information about the distribution of citrus black spot within South Africa. Detection surveys were conducted in citrus production areas in the Western Cape, Northern Cape and Free State Provinces and appropriate diagnostic protocols were used to ensure reliable detection of G. citricarpa. Trees in commercial orchards and home gardens on farms and in towns of 17, 9 and 5 magisterial districts in the Western Cape, Northern Cape and Free State Provinces, respectively, were sampled between 1995 and 2010. Fruit samples were taken during June and July, and leaf samples from November to January. None of the 3060 fruit and leaf samples collected during these surveys tested positive for G. citricarpa. Phyllosticta capitalensis, a non-pathogenic, ubiquitous, endophytic species was, however, detected during these surveys. In compliance with relevant International Standards for Phytosanitary Measures and based on the outcome of these official surveys, these three provinces in South Africa can be recognised as citrus black spot pest free areas.
dc.description.urihttp://sajs.co.za/citrus-black-spot-absent-western-cape-northern-cape-and-free-state-provinces/carstens-elma-le-roux-hendrik-holtzhausen-michael-van-rooyen-liezl-coetzee-joey-wentzel-ria
dc.format.extent6 pages
dc.language.isoen
dc.publisherAcademy of Science of South Africa
dc.subjectCitrus fruiten_ZA
dc.subjectPest free areasen_ZA
dc.subjectQuarantineen_ZA
dc.subjectTrade regulationen_ZA
dc.titleCitrus black spot is absent in the Western Cape, Northern Cape and Free State Provincesen_ZA
dc.typeArticle
dc.description.versionPublisher's version
dc.rights.holderAuthors retain copyright


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