Masters Degrees (Plant Pathology)

Diversity and detection of Kenyan and Nigerian populations of Fusarium oxysporum f. sp. strigae

De Klerk, Madelein (Stellenbosch : Stellenbosch University, 2017-12)

ENGLISH ABSTRACT: The Genus Striga contains some of the most destructive plant-parasitic weed species in the world. These include S. hermonthica and S. asiatica, which attack important staple food crops in sub-Saharan ...

Evaluation of maize breeding populations for resistance to Fusarium verticillioides and fumonisin contamination

Netshifhefhe, Nakisani Elelwani Innocentia (Stellenbosch : Stellenbosch University, 2017-03)

ENGLISH SUMMARY: Maize is an important crop cultivated all around the world. It is the main source of carbohydrates for over 200 million people in Sub-Saharan Africa. Daily consumption rates can reach up to 500 g per person ...

Monitoring fusarium, gibberella and diplodia ear rots and associated mycotoxins in maize grown under different cropping systems

Mabuza, Londiwe (Stellenbosch : Stellenbosch University, 2017-03)

ENGLISH SUMMARY: Maize ear rots represent a significant problem in most maize production areas resulting in reduced yield and quality due to visible fungal infection and mycotoxin contamination of maize grain. Mycotoxigenic ...

Singular and combined effect of postharvest treatments on viability and reproductive ability of phyllosticta citricarpa infections.

Schreuder, Wouter (Stellenbosch : Stellenbosch University, 2017-03)

ENGLISH ABSTRACT: Citrus is one of the most important fruit crops globally and is currently being produced in over 100 countries. South Africa is one of the biggest shipping exporters of fresh citrus, with approximately ...

Further optimisation of in-line aqueous application of imazalil to control citrus green mould caused by Penicillium digitatum

Savage, Catherine (Stellenbosch : Stellenbosch University, 2017-03)

ENGLISH ABSTRACT: South Africa has a successful citrus export industry. A threat to fresh citrus fruit is the fungal pathogen Penicillium digitatum causing green mould. Imazalil (IMZ) is the most important fungicide to ...

Optimisation of postharvest drench application of fungicides on citrus fruit

Christie, Charmaine (Stellenbosch : Stellenbosch University, 2016-03)

ENGLISH ABSTRACT: South Africa is the 2nd largest exporter of fresh citrus, after Spain, worldwide. Delays to the packline, i.e. degreening, can result in substantial postharvest decay such as green mould caused by Penicillium ...

Quantification of apple replant pathogens from roots, and their occurrence in irrigation water and nursery trees

Moein, Shahrooz (Stellenbosch : Stellenbosch University, 2016-03)

ENGLISH ABSTRACT: Apple replant disease (ARD), an economically important disease of apple, occurs when young apple trees are planted on soil previously cultivated to apple or closely related species. Soil is considered as ...

Mancozeb rainfastness and residue thresholds for control of Venturia inaequalis

Rossouw, Cornelis Johannes (Stellenbosch : Stellenbosch University, 2016-03)

ENGLISH SUMMARY: An important apple disease world-wide is Venturia inaequalis that causes scab-like lesions on fruit and defoliation of trees. In South Africa, the disease is mainly managed through fungicide sprays that ...

Phosphite sensitivity of phytophthora cinnamomi and methods for quantifying phosphite from avocado roots

Jing, Ma (Stellenbosch : Stellenbosch University, 2016-03)

ENGLISH ABSTRACT: Phytophthora root rot caused by Phytophthora cinnamomi threatens the production of avocado worldwide, but the disease can be effectively managed using phosphonates. The mode of action of phosphonates is ...

Apple stem grooving virus (ASGV) and apple stem pitting virus (ASPV) : detection and isolate characterization in South African pome fruit

Gagiano, Magdalena Christiena (Stellenbosch : Stellenbosch University, 2015-03)

Apple stem grooving virus (ASGV) and Apple stem pitting virus (ASPV) are known to infect pome fruit in all pome fruit producing regions of the world. In this study, a comparison between double-antibody sandwich enzyme ...

ELISA detection of Apple chlorotic leafspot virus (ACLSV) and Apple mosaic virus (ApMV) in comparison to RT-PCR detection and the determination of genetic variation of these virus species in South Africa

Malan, Sophia Susanna (Stellenbosch : Stellenbosch University, 2014-12)

ENGLISH ABSTRACT: Apple chlorotic leaf spot virus (ACLSV) and Apple mosaic virus (ApMV) are responsible for reduced yield in the South African deciduous fruit industry. These two diseases are regulated by the South African ...

Fungicide resistance and control of citrus green mould

Kellerman, Mareli (Stellenbosch : Stellenbosch University, 2014-04)

ENGLISH ABSTRACT: Please refer to full text for abstract

Resistance in South African maize inbred lines to the major ear rot diseases and associated mycotoxin contamination

Mouton, Marili (Stellenbosch : Stellenbosch University, 2014-12)

ENGLISH ABSTRACT: Maize (Zea mays L.) is one of the most important grain crops produced globally and serves as the primary source of carbohydrates and vitamins to millions of people in Africa. Whenever environmental ...

The role of sucker wounds as portals for grapevine trunk pathogen infections

Makatini, Gugulethu Joy (Stellenbosch : Stellenbosch University, 2014-04)

ENGLISH ABSTRACT: Grapevine trunk diseases are responsible for reduced wine and table grape production world-wide. Trunk disease infections are caused by xylem-inhabiting pathogens which include species of Botryosphaeriaceae, ...

Risk assessment of the Acacia cyclops dieback pathogen, Pseudolagarobasidium acaciicola, as a mycoherbicide in the South African strandveld and limestone fynbos

Kotze, Louis Jacobus Daniel (Stellenbosch : Stellenbosch University, 2014-04)

ENGLISH ABSTRACT: Acacia cyclops, an invasive weed in South Africa, was initially imported to stabilize the sand dunes in the southern Cape. The spread of A. cyclops is a major threat to the fragile biodiversity of the ...