Browsing by Subject "Bt maize"
Now showing items 1-10 of 15
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Base-line susceptibility of Busseola fusca for Bt maize in South Africa
(North-West University (South Africa), 2015)Genetically modified maize that express insecticidal proteins (Bt proteins) have been commercialized in South Africa for the control of Busseola fusca (Lepidoptera: Noctuidae). Busseola fusca has been reported to be ... -
Bt maize and frogs : an investigation into possible adverse effects of Bt toxin exposure to amphibian larvae
(North-West University, 2012)Genetically modified maize expressing the Bt-protein Cry1Ab (Bt maize) is planted widely in South Africa. Crop residues of Bt maize often end up in aquatic ecosystems where aquatic organisms are exposed to Cry1Ab protein. ... -
Busseola fusca (Lepidoptera: Noctuidae) moth and larval behaviour in Bt- and non-Bt maize: an IRM perspective
(North-West University (South Africa), 2020)The African maize stemborer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is one of the most damaging pest species of maize in Africa. Genetically modified (GM) Bt maize that expresses insecticidal Cry proteins could ... -
Development of resistance by fall armyworm (Spodoptera frugiperda) to Cry proteins in Bt maize
(North-West University (South Africa), 2022)The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) has become one of the most damaging agricultural pests since it was first recorded outside of its native area of the Americas in 2016. ... -
Effects of Bt crop residues on the development, growth, and reproduction of the freshwater snail, Bulinus tropicus
(North-West University, 2014)Genetically modified (GM) crops were introduced in South Africa in 1989 and commercially available by 1998. Legislation to control the use of GM crops was only implemented in 1999, with the genetically modified organisms ... -
Effects of Cry1Ab transgenic maize on lifecycle and biomarker responses of the earthworm, Eisenia Andrei
(MDPI, 2012)A 28-day study was conducted to determine the effects of the Bacillus thuringiensis Cry1Ab toxin on the earthworm Eisenia andrei. Previously, investigations have been limited to life-cycle level effects of this protein ... -
Fusarium ear rot and fumonisins in maize kernels when comparing a Bt hybrid with its non-Bt isohybrid and under conventional insecticide control of Busseola fusca infestations
(Elsevier, 2018)Maize production in South Africa is negatively affected by Fusarium verticillioides, an endophytic maize pathogen, as well as by Busseola fusca larval damage. Fusarium verticillioides causes ear, stem and root rot, and ... -
The indirect effect of Bt maize (Cry1Ab) on Cotesia sesamiae (Hymenoptera : Braconidae)
(North-West University (South Africa), 2019)Busseola fusca (Fuller) (Lepidoptera: Noctuidae), Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) and Sesamia calamistis Hampson (Lepidoptera: Noctuidae) are major pests of maize and sorghum in sub-Saharan Africa. The ... -
The indirect effect of Cry 1Ab protein expressed in Bt maize, on the biology of Chrysoperla pudica (Neuroptera: Chrysopidae)
(2014)Genetically modified (GM) maize was developed mainly to control lepidopteran pests such as the maize stem borer (Busseola fusca) (Lepidoptera: Noctuidae). Since the first commercialization of GM crops with insecticidal ... -
Influence of vermicompost application on rhizospheric microbial communities and Arbuscular mycorrhizal fungal colonisation of BT and non-BT maize in agricultural soil
(North-West University, Potchefstroom Campus, 2018)Increasing crop production to ensure future food security while reducing environmental pressure on agro-ecosystems requires improved nutrient and water use efficiency. The soil microbial community directly and/or indirectly ...