Browsing Natural and Agricultural Sciences by Subject "Degree-days"
Now showing items 1-4 of 4
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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 the development and reproduction of Busseola fusca (Lepidoptera: Noctuidae)
(North-West University, 2015)Busseola fusca is an indigenous lepidopteran pest species in tropical Africa, attacking several grain crops. Crop loss caused by this pest can be as high as 100% depending on conditions. Despite it being a major pest in ... -
Efficacy of Bt proteins and the effect of temperature on the development of spiny bollworm in South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2016)Genetically modified cotton expressing Bacillus thuringiensis (Bt) proteins has been cultivated in South Africa since 1998 for control of the bollworm complex. Spiny bollworms, Earias biplaga (Walker) (Lepidoptera: Noctuidae) ... -
Evaluating sex pheromone monitoring as a tool in the integrated management of vine mealybug, Planococcus ficus (signoret) (Homoptera: Pseudococcidae)
(North-West University, 2006)The vine mealybug, Planococcus ficus (Signoret) (Homoptera: Pseudococcidae) is a pest with significant economic impact on the grape growing industry in South Africa and other parts of the world. With the isolation and ...