Doctoral Degrees (Plant Pathology)
Recent Submissions
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Ethnopharmacological study on plants used for skincare and beauty by some Xhosa communities.
(2018)The paraphrase “beauty lies in the eyes of the beholder” by Plato, a Greek philosopher, has echoed through the fabrics of time and still echoes in our generation. The statement simply ought to refer to that the observer ... -
Biological control of three grain storage pests: maize weevil, Sitophilus zeamais (Motschulsky), almond moth, Ephestia cautella (Walker) and cigarette beetle, Lasioderma serricorne (Fabricius), using novel strains of Beauveria bassiana (Balsamo) Vuillemin in powder formulation.
(2017)Abstract available in PDF file. -
Prevalence, detection and characterization of tomato spotted wilt and iris yellow spot tospoviruses occuring in Zimbabwe.
(2017)Abstract available in PDF file. -
Identification and characterization of viruses infecting cucurbits in the province of KwaZulu-Natal, Republic of South Africa, with the purpose of developing transgenic virus-resistant cucurbits.
(2016)The continued presence of cucurbit-infecting viruses across the Province of KwaZulu- Natal (KZN), South Africa requires exploration of alternative methods of controlling these viruses. The aim of this research project ... -
Integrating microdosing of fertilizers with biological control agents for maize production in the Eastern Cape, South Africa.
(2015)Maize is an important staple crop in South Africa, and is also used for animal feed. In the Eastern Cape Province in South Africa a larger percentage of the farmers are small scale farmers and lack financial resources to ... -
Organogenesis and genetic transformation of dierama erectum hilliard.
(2016)Abstract available in PDF file. -
Use of trichoderma and bacillus isolates as seed treatments against the rootknot nematode, meloidogyne javanica (chitwood)
(2015)Abstract available in PDF file. -
Development of a new entomopathogenic nematode species, steinernema innovation : biological characterization and mass production.
(2014)Entomopathogenic nematodes belonging to the genera Steinernema and Heterorhabditis are employed as environmental friendly biopesticides to control key pests in high value agricultural crops. Their successful application ... -
Studies on Puccinia recondita f. sp. tritici with special emphasis on adult plant resistance in wheat.
(1986)Leaf rust (Puccinia recondita f.sp. tritici) of wheat (Triticum aestivum) was widespread in South Africa during 1983, 1984 and 1985 and often reached epidemic levels, especially on autumn-sown spring wheat in the Cape ... -
The use of Agrobacterium for plant improvement.
(1994)Agrobacterium species have potential as tools for plant improvement, in that they can be used as biological control agents against crown gall disease, vectors for gene insertion into plants and plant root-inducing ... -
Studies on the expression of resistance to stem rust of wheat caused by Puccinia graminis f.sp. tritici.
(1991)The endogenous cytokinin levels of healthy primary leaves and seeds of a stem-rust susceptible wheat cultivar Little Club were compared with those of Little Club containing the stem rust resistance gene Sr25. Use was ... -
Studies on Alternaria porri and Stemphylium vesicarium on Allium spp.
(1993)During surveys in South Africa, Alternaria porri (Ellis) cif. and Stemphylium vesicarium (Wallr.) E. Simmons were found to be destructive seed-borne pathogens of onion (Allium cepa L. ). These two pathogens are also ... -
A study on the ultrastructure and control of the gladiolus rust pathogen, Uromyces transversalis.
(1988)The substomatal vesicle of Uromyces transversalis develops in five distinct stages after the formation of a single infection peg in the host plant Gladiolus spp. The primary hyphae of the substomatal vesicle orientate ... -
Studies on the expression of resistance of Coffea selections to Hemileia Vastatrix.
(1990)Physiological races of Hemileia vastatrix in southern Africa were identified. Prevalent races were I (2.2%), II (88.9%) and III (2.2%). Six samples could not be identified. Twelve biotypes of race II were distinguished. ... -
The characterisation of turkey rhinotracheitis virus from chickens and the development of a suitable vaccine.
(1994)Three turkey rhinotracheitis virus-like (TRTV-like) isolates were isolated from chickens with swollen heads. All grew well via the yolk sac (y/s) , chorioallantoic membrane (CAM), tracheal organ culture (TOC) , chicken ... -
Studies on the resistance of wheat and maize to fungal pathogenesis.
(1990)17-Day-old seedlings of winter-wheat cultivar SST25 were inoculated with an avirulent race of wheat leaf rust, Puccinia recondita f.sp. tritici. After various time intervals the plants were reinoculated with a virulent ... -
Studies on the pathogenicity of Puccinia graminis f. sp. Tritici and the nature of host resistance in wheat.
(1986)This study was undertaken to investigate the pathogenic variation of Puccinia graminis f.sp. tritici in South Africa and to determine the nature of host resistance to this fungus. Seventeen pathotypes of wheat stem ... -
Epidemiology and management of grey leaf spot : a new disease of maize in South Africa.
(1996)Grey leaf spot is a relatively new fungal disease of maize in South Africa. It has become well established in the province of KwaZulu-Natal, and is capable of reducing grain yields by 20 to 60%. The disease is spreading ... -
Ultrastructure, cytochemistry and immunocytochemistry of the interaction between wheat (Triticum aestivum) and leaf rust (Puccinia Recondita f.sp. tritici)
(1996)The development of infection structures, derived from urediospores of Puccinia recondita f.sp. tritici in near-isogenic lines of susceptible and resistant wheat, and in non-hosts, viz. maize, oat, sorghum and barley, ...
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