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Browsing by Supervisor "Barnes, Irene"
Now showing items 1-12 of 12
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(University of Pretoria, 2022)The thesis titled ‘Araucaria (Araucaria araucana) canker disease in Chile: etiology and fungal diversity’ considered a serious disease that has recently emerged on Araucaria araucana, an iconic conifer species endemic to ...
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(University of Pretoria, 2014-07)Northern corn leaf blight (NCLB) is a yield-limiting foliar disease that results from infection with the fungal pathogen, Exserohilum turcicum (Pass.). Maize, sorghum and related grass species such as Johnson grass and ...
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(University of Pretoria, 2022)Many countries have established commercial plantations of Pinus spp. to accommodate a growing demand for wood and timber products. In the Southern Hemisphere, where Pinus spp. are non-native, establishment of these plantations ...
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(University of Pretoria, 2014)
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(University of Pretoria, 2021)Ceratocystis infections pose significant threats to the sustainability of plantation-grown trees propagated for commercial purposes. Ceratocystis infections result in wilt, canker, vascular discolourations and eventual ...
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(University of Pretoria, 2014)Cercospora zeina is the causal agent of a foliar disease of maize called grey leaf spot (GLS) in southern Africa (Meisel et al, 2009). Maize is the most important food crop in sub-Saharan Africa and the Americas. Consequently ...
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(University of Pretoria, 2021)Gonipterus sp. n. 2 is an invasive pest of Eucalyptus spp. This pest is managed by Anaphes nitens, an egg parasitoid of Gonipterus spp. Despite Gonipterus sp. n. 2 being a major pest in Eucalyptus plantations, no studies ...
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(University of Pretoria, 2019)Cercospora zeina, a causal pathogen of gray leaf spot (GLS) of maize, is responsible for up to 1 % of global yield losses. Previous small-scale population genetics studies have revealed that C. zeina is a highly diverse ...
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(University of Pretoria, 2021-12-02)Dothistroma needle blight (DNB), caused by Dothistroma pini and D. septosporum, and Brown spot needle blight (BSNB), caused by Lecanosticta species, are two pine needle diseases of Pinus species that have become diseases ...
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(University of Pretoria, 2012-06-07)Mango wilt disease represents one of destructive diseases threatening mango cultivation in areas where it has been reported. Studies in this thesis represent the first to be undertaken after it was recognized that the ...
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(University of Pretoria, 2008-08-15)This dissertation represents a study on Ceratocystis spp. with hat-shaped ascospores. Previously only six species of Ceratocystis with this spore form were known. These include C. fimbriata, C. pirilliformis, C. albofundus, ...
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(University of Pretoria, 2020)the promovendus investigated species diversity, mating strategies and population diversity of the plant pathogen Calonectria species. An extensive disease surveys and multigene phylogenetic analyses discovered six novel ...
Now showing items 1-12 of 12