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Pests and predators on genetically altered cotton (Bt-cotton) and associated host plants in South Africa

Bennett, Annette (University of the Free State, 2009-09-23)

The efficacy of the Bt-genes (the cry1Ac and cry2Ab2 genes) were evaluated for bollworms (i.e. the American or “African” bollworm, Helicoverpa armigera, the red bollworm Diparopsis castanea and the spiny bollworm species, ...

The postcranial skeleton of the Early Triassic non-mammalian cynodont Galesaurus planiceps: implications for biology and lifestyle

Butler, Elize (University of the Free State, 2009-12)

Newly discovered skeletons of the Early Triassic basal cynodont, Galesaurus planiceps, has enabled a detailed morphological redescription of the postcrania of this genus. The examination of Galesaurus reveals two ...

Aspekte van die biologie van tuinduiwe (Columba livia) in die Bloemfonteinse stadsgebied

Le Roux, Pieter Daniël Stephanus (University of the Free State, 2007-05)

English: Owing to the increase of complaints in the city of Bloemfontein concerning the damage being caused to buildings by birds, different aspects of the biology of feral pigeons (Columba livia) was investigated. Close ...

A practical investigation into catfish (Clarias gariepinus) farming in the Vaalharts irrigation scheme

Fourie, Josephus J. (University of the Free State, 2006-05)

English: A practical investigation into factors influencing the success of catfish (Clarias gariepinus) farming in the Vaalharts Irrigation Scheme was undertaken. These factors were production, nutrition, disease, disease ...

The biology of gnathiid isopod parasites and their role as vectors of fish blood parasites in South Africa

Smit, Nicholas Jacobus (University of the Free State, 2000-12)

English: Research on marine fish parasites has been largely neglected in South Africa. This is especially true for the temporary fish parasites of the isopod family Gnathiidae and fish blood parasites of the family ...

The influence of clothing, wrapping and physical trauma on carcass decomposition and arthropod succession in central South Africa

Kelly, Janine Anne (University of the Free State, 2006-06)

English: Forensic entomology is the study of arthropods associated with bodies. Arthropod successional studies have been successfully used to estimate a postmortem interval. This research was to determine the influence of ...

Biology and control of the mango seed weevil in South Africa

Louw, Cornelia Estelle (University of the Free State, 2008)

English: The mango seed weevil (MSW), Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae), generally causes few problems on early-season cultivars, since the fruit are marketed and consumed before adult emergence ...

Factors influencing the life cycle of ctenocephalides spp.

Du Rand, Christina (University of the Free State, 2001-01)

English: The behaviour and survival of C. felis are highly dependent on biotic and abiotic factors in the environment and therefore developmental and nutritional requirements demand that eggs must be laid in a environment ...

Forensic entomology: the influence of the burning of a body on insect succession and calculation of the postmortem interval

Kolver, Jacobus Hendrik (University of the Free State, 2009)

Forensic entomology is the application of the study of insects and other arthropods which are associated with legal issues and certain suspected criminal events. Successional studies have been successfully applied in ...

Activity patterns of birds in the central Free State, South Africa

Van Niekerk, Daniël Johan (University of the Free State, 2009-11)

Activity patterns of bird species were studied at Glen Agricultural College within the grassland area of the central Free State, South Africa, during a period of 11 years (July 1997 - July 2008). The study focused on a ...