Doctoral Degrees (Entomology)
Recent Submissions
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Understanding the fitness, preference and performance of specialist herbivores of the Southern African biotype of Chromolaena Odorata (Asteraceae), and impacts on phytochemistry and growth rate of the plant.
(2019)The invasiveness and negative impacts of the alien shrub, Chromolaena odorata (L.) (Asteraceae) in South Africa resulted in the initiation of a biological control programme against the weed in the late 1980s. After the ... -
Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries.
(2017)Senecio madagascariensis Poir. (fireweed; Asteraceae), native to southern Africa and Madagascar, has invaded Australia, Hawaii, South America and Japan, reducing pastoral productivity and poisoning livestock. Interest in ... -
Investigations into the incidence and ecology of bilobata subsecivella (zeller) (lepidoptera: gelechidae) : a new pest of groundnut in South Africa.
(2015)The leaf-mining moth, Bilobata subsecivella (Zeller) (Lepidoptera: Gelechiidae), thought to be an invasion from Indo-Asia (where it is known as Aproaerema modicella (Deventer); but hereafter referred to as B. subsecivella) ... -
Bionomics and control of the sugarcane insect Numicia viridis Muir (Homoptera: Tropiduchidae)
(1973)Numicia viridis Muir (Homoptera : Tropiduchidae) is an indigenous southern African insect which was 'described in 1931 from specimens collected in Pondoland and Natal. In 1962 it became of economic importance when it ... -
An ecological investigation of the insects associated with exposed carcasses in the northern Kruger National Park : a study of populations and communities.
(1984)Extensive seasonal collections along with absolute counts of all the arthropods attracted to medium- and large mammal carcasses resulted in the most complete record of carrion-fauna in Africa to date. The abundance of ... -
Ecological correlates : endophagous insects and plants in fynbos.
(1995)The objective of this study was to investigate endophagous insect species richness in Fynbos. The influences of plants as determinants of insect occurrence were given special attention. The endophagous insects associated ... -
Impact of insect growth regulators on non-target species, with an emphasis on Coccinellids on citrus, in Swaziland.
(1998)This study investigated effects of insect growth regulators (IGRs), recommended for use on citrus in southern Africa, on non-target organisms, particularly species of Coccinellidae in and around three citrus estates in ... -
Systematic revision of Tricholabiodes Radoszkowski (Hymenoptera: Mutillidae)
(1998)This study comprises an examination of over 4000 male specimens, including nearly all type material, a detailed study of the genitalia, and a key to the majority of the species of Tricholabiodes Radoszkowski. Thirty species ... -
Response of carabid and cicindelid beetles to various types of landscape disturbances.
(1998)A study of carabids and cicindelids was carried out in eastern South Africa using the same methodology as has been used in the northern hemisphere to obtain a southern hemisphere perspective. The study used the macroecology ... -
Fungal parasitism of cereal aphids in South Africa.
(2002)The Russian wheat aphid, Diuraphis noxia is one of the most destructive exotic invaders of South Africa, capable of reducing individual wheat plant yields by up to 90%. Entomopathogenic fungi are important natural mortality ... -
Biology and conservation of the threatened Karkloof blue butterfly Orachrysops ariadne (Butler) (Lepidoptera: Lycaenidae)
(2002)The Karkloof blue butt erfly, Orachrysops ariadne (Butler), is endemic to the Mistbelt grassland of KwaZulu-Natal province, South Africa, and is currently Red-listed as 'Vulnerable' . O. ariadne is univoltine and on the ... -
Biotic indicators of grassland condition in KwaZulu-Natal, with management recommendations.
(2005)The South African grassland biome is disappearing rapidly through advancing development and change in agricultural land use. One of the most threatened grassland types, Midlands Mistbelt, in the KwaZulu-Natal Midlands is ... -
Sugarcane stem borers in Ethiopia : ecology and phylogeography.
(2006)Eldana saccharina Walker (Lepidoptera: Pyralidae) is an indigenous insect widely distributed throughout Sub-Saharan Africa that is a major pest of sugarcane in southern Africa. Studies have shown that populations from West ...
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