Doctoral Degrees (Plant Pathology)
Recent Submissions
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Evaluation of adjuvants in fungicide spray application for the control of alternaria brown spot in South African citrus orchards
(Stellenbosch : Stellenbosch University, 2019-03)ENGLISH ABSTRACT: Citrus fruit and foliar diseases are mainly controlled through pre-harvest application of fungicides. Fungicides are only as effective as the application process and for effective disease control ... -
Linking long-term patterns of landscape heterogeneity to changing ecosystem processes in the Kruger National Park, South Africa
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: Biodiversity loss is a global threat to ecosystem function and human well-being. Environmental heterogeneity is a recognised driver of biodiversity under a niche-based view of available species habitats. ... -
Spectrum of in-vitro activity and efficacy of phosphonates for management of apple replant disease and Oomycete root rot pathogens in South Africa
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: In South Africa, apple replant disease (ARD) and Phytophthora root rot are two soilborne diseases that are important in apple production. ARD occurs when old apple orchards are replanted, causing a ... -
Population structure, sex and spatial distribution of phyllosticta citricarpa, the citrus black spot pathogen
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Citrus Black Spot (CBS), caused by Phyllosticta citricarpa, is a fungal disease that influences citrus industries worldwide. All commercial Citrus spp. are susceptible to the disease. The pathogen was ... -
Identification and characterisation of diatrypaceae species associeated with declining grapevines and alternative hosts in South Africa
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Grapevine trunk diseases have devastating impacts on the sustainability of viticulture, worldwide. Eutypa dieback, in particular, has caused large economic losses and premature mortality of vines. This ... -
Interactive effect of busseola fusca and fusarium verticillioides on ear rot and fumonisin production in maize
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Maize is a crop of great economic importance in southern Africa, and is widely consumed as a staple food and animal feed. Production of maize, however, is hampered by pathogens and pests such as Fusarium ... -
Inoculum ecology of petri disease fungi in grapevines of South Africa
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Petri disease is among the important grapevine trunk diseases affecting lifespan and productivity of young vines worldwide. Infection result in poor vine stand in newly established vineyards and a general ... -
Investigating maize inbred line responses following infection by the Mycotoxigenic fungus Fusarium verticilliodes
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Fusarium verticillioides is an important fungal pathogen of maize and is associated with the crop wherever it is produced. It is the most common fungal contaminant of South African maize grain and causes ... -
The identification and characterization of resistance musa to Fusarium Oxysporum F.SP cubense race 1
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Fusarium oxysporum f. sp. cubense (Foc), a soil-borne fungus affecting bananas (Musa spp.), is considered one of the most devastating pathogens in agricultural history. The fungus infects banana roots, ... -
Management of postharvest diseases of apples using essential oils
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Grey mould, blue mould and bull’s eye rot, caused by Botrytis cinerea, Penicillium expansum and Neofabraea alba, respectively, are postharvest diseases which cause significant losses to the apple industry ... -
The characterisation of basidiomycetes associated with esca disease in South African grapevines
(Stellenbosch : Stellenbosch University, 2015-03)ENGLISH ABSTRACT: Esca is a disease complex of grapevine that includes different foliar and vascular symptoms caused by various fungal pathogens. One of the distinguishing characteristics of the disease on mature vines is ... -
Improving pruning wound protection against grapevine trunk disease pathogens
(Stellenbosch : Stellenbosch University, 2014-03)ENGLISH ABSTRACT: Grapevine trunk diseases are a cause of decline and loss of productivity in grapevines at all stages of growth. These diseases are caused by a complex of wood-inhabiting fungi that infect mainly through ... -
Optimisation of imazalil application and green mould control in South African citrus packhouses
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: South Africa is the largest exporter of shipped fresh citrus fruit worldwide. One of the major factors that can lead to substantial losses is postharvest decay. Penicillium digitatum (PD) and P. italicum ... -
Responses of Venturia inaequalis to sanitation and regional climate differences in South Africa
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: The apple industry in South Africa currently relies entirely on chemical fungicides to control apple scab, caused by Venturia inaequalis. In this dissertation, alterative management strategies against V. ... -
Ecology and characterization of Streptomyces species associated with common scab disease conducive and biofumigated soils in South Africa
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: Common scab of potato is a serious cosmetic disease in South Africa as well as internationally. The disease affects the appearance and quality of potatoes resulting in major annual losses. Potato producers ... -
Botryosphaeria diseases of proteaceae
(Stellenbosch : Stellenbosch University, 2002-03)ENGLISH ABSTRACT: Fungi belonging to the genus Botryosphaeria are heterotrophic micromycetes that can be pathogens on woody plants. They cause serious, and in some cases devastating losses to crops through leaf necrosis, ... -
Genetics of pathogenicity in Pyrenophora leaf diseases of barley
(Stellenbosch : Stellenbosch University, 2001-12)ENGLISH ABSTRACT: Net blotch of barley, caused by Pyrenophora teres, is one of the most important diseases of this cereal in the south Western Cape Province of South Africa. This fungus exists as two different types ... -
Epidemiology of Monilinia laxa on nectarine and plum : infection of fruits by conidia
(Stellenbosch : Stellenbosch University, 2001-03)ENGLISH ABSTRACT: Postharvest decay of stone fruit in the Western Cape province of South Africa is caused primarily by Botrytis cinerea (grey mould) and Monilinia laxa (brown rot). Little is known about the relative ... -
Virulence spectrum, molecular characterisation and fungicide sensitivity of the South African Rhynchosporium secalis population
(Stellenbosch : Stellenbosch University, 2000-12)ENGLISH ABSTRACT: Barley leaf scald, caused by Rhynchosporium secalis, is the most important disease of barley (Hordeum vulgare) in the Western Cape province of South Africa. The disease was first reported from South ... -
Characterization and pathogenicity of South African isolates of Fusarium oxysporum f. sp. melonis
(Stellenbosch : Stellenbosch University, 2000-03)ENGLISH ABSTRACT: The purpose of this study was to characterize the race and vegetative compatibility of Fusarium oxysporum f. sp. melonis (FOM) isolates collected in the major melon producing areas, to report on their ...
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