Browsing Masters Degrees (Plant Pathology) by Title

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 ...

Epidemiology and control of Pseudocercospora angolensis fruit and leaf spot disease on citrus in Zimbabwe

Pretorius, Mathys Cornelius (Stellenbosch : Stellenbosch University, 2005-12)

ENGLISH ABSTRACT: Fruit and Leaf Spot Disease (FLSD) of citrus, caused by Phaeoramularia angolensis, is found only in 18 countries in Africa, the Comores Islands in the Indian Ocean and Yemen in the Arabian peninsula. ...

Etiology and management of Neofabraea lenticel decay (bull’s eye rot) of apples in the Western Cape of South Africa

Russouw, Andre (Stellenbosch : Stellenbosch University, 2019-12)

ENGLISH ABSTRACT: Postharvest lenticel decay of apple and pear fruit caused by Neofabraea malicorticis, N.perennans. N. vagabunda and N. kienholzii is a disease more commonly known as Bull’seye rot. In South Africa, only ...

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 ...

The expression of yeast antifungal genes in tobacco as possible pathogenesis-related proteins

Basson, Esmé Maree (Stellenbosch : Stellenbosch University, 2003-12)

ENGLISH ABSTRACT: The resistance of plants to infection by phytopathogenic microorganisms is the result of multiple defence reactions comprising both constitutive and inducible barriers. While disease is the exception, ...

Fungicide resistance and control of citrus green mould

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

ENGLISH ABSTRACT: Please refer to full text for abstract

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 ...

Fusarium graminearum species complex (FGSC) composition in South African wheat and maize grown in rotation

Gokul, Anushka (Stellenbosch : Stellenbosch University, 2016-03)

ENGLISH ABSTRACT: Fusarium graminearum is an important pathogen of economically important cereal crops. Recently, the morpho-species has been reclassified as a species complex consisting of 16 phylogenetic species, called ...

Genetic characterization and fungicide resistance profiles of Botrytis cinerea in rooibos nurseries and pear orchards in the Western Cape of South Africa

Wessels, Andries Bernardus (Stellenbosch : Stellenbosch University, 2012-03)

ENGLISH ABSTRACT: Botrytis cinerea Pers. Fr. [teleomorph Botryotinia fuckeliana (de Bary) Whetzel] causes serious losses of over 200 crops worldwide, including rooibos seedlings and pears. This pathogen is characterized ...

Genetic diversity in Plasmopara viticola in South Africa

Koopman, Trevor A (Stellenbosch : Stellenbosch University, 2007-03)

ENGLISH ABSTRACT: Downy mildew, caused by the obligate pathogen Plasmopara viticola, is a very destructive grapevine disease. The asexual phase (sporangia) of the pathogen has long been viewed as the life cycle stage ...

Identification of differentially expressed mRNA species in Vitis vinifera in reaction to infection by Uncinula necator

Van der Merwe, Andreas Stephanus (Stellenbosch : Stellenbosch University, 1999-12)

ENGLISH SUMMARY: Powdery mildew is one of the most important grapevine diseases and is a problem in all the grapevine producing areas. Losses caused by uncontrolled powdery mildew force producers to follow extensive ...

The implementation and validation of reduced volume argrochemical applications in the south African citrus industry using novel technology

Van Wyk, Tertia (Stellenbosch : Stellenbosch University, 2019-03)

ENGLISH ABSTRACT: The South Africa citrus industry is the third largest exporter in the world and is considered one of the most important horticultural crops due to high economic export value. However, citrus trees ...

Incidence and epidemiology of apple core rot in the Western Cape of South Africa

Basson, Elaine (Stellenbosch : Stellenbosch University, 2012-12)

ENGLISH ABSTRACT: This study looked at the incidence, etiology and epidemiology of core rot of apples in orchards situated in the Western Cape, South Africa. Core rot is a post-harvest disease, with three symptoms, namely ...

Infection by dry, airborne Botrytis cinerea conidia and fungicide efficacy on different parts of grape bunches and vinelets

Van Rooi, Cicelia (Stellenbosch : Stellenbosch University, 2002-03)

ENGLISH ABSTRACT: The evaluation of fungicide efficacy in commercial vineyards can be influenced by the sporadic occurrence of Botrytis cinerea at various positions on vines, differences in bunch structure during bunch ...