Browsing by Subject "temperature"
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Comparing the effect of modeled climatic variables on the distribution of African horse in South Africa and Namibia
(Wiley, 2015)Africa horse sickness (AHS) is a lethal disease of horses with a seasonal occurrence that is influenced by environmental conditions that favor the development of Culicoides midges (Diptera: Ceratopogonidae). This study ... -
Effect of temperature on development and reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae)
(North-West University, 2018)Spodoptera frugiperda (Lepidoptera: Noctuidae) is a polyphagous pest with a preference for crops which belong to the Poaceae family. Spodoptera frugiperda is native to the tropical and sub-tropical regions of South America ... -
The effect of temperature on Nysius natalensis Evans (Hemiptera: Orsillidae) development and survival
(Entomological Society of Southern Africa, 2011)The false chinch bug, Nysius natalensis Evans (Hemiptera: Orsillidae), is a pest of sunflower, Helianthus annuus L. (Asteraceae), in South Africa. Pest outbreaks usually occur in localized areas towards the end of the ... -
Leaching kinetics of carbonatite and silicate based chalcopyrite minerals
(North-West University (South Africa), 2020)Copper (Cu) is a widely used metal with high thermal and electrical conductivities, which is primarily extracted from the low-grade Cu sulphide mineral, chalcopyrite. Hydrothermal extraction is the preferred process for ...