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CIMMYT-Kenya annual report
Evaluation of stem borer resistance management strategies for Bt maize in Kenya based on alternative host refugia
Stem borers are the major insect pests of maize in Kenya. The use of Bacillus thuringiensis (Bt) technology is an effective way of controlling lepidopteran pests. However, the likelihood of development of resistance to ...
Effects of insect population density and storage time on grain damage and weight loss in maize due to the maize weevil Sitophilus zeamais and the larger grain borer Prostephanus truncatus
In the period 2007 to 2010, at localities Backi Maglic and Krivaja studies of weed seedbank were performed under soybean crop. Results showed that weed seed separated at Backi Maglic in all years dominated in the top soil ...
SIMLESA Workshop Proceedings Golden Peacock Hotel August 2014, Lilongwe, Malawi
(CIMMYT / ACIAR, 2014)
Consumer preferences for maize products in urban Kenya
Background. New maize varieties have been biofortified with provitamin A, mainly â-carotene, which renders the grain yellow or orange. Unfortunately, many African consumers prefer white maize. The maize consumption patterns ...
Combining ability of maize (Zea mays L.) inbred lines resistant to stem borers
Ten inbred parents with varying resistance levels to Chilo partellus and Busseola fusca were crossed in a half diallel mating scheme to generate 45 F1 hybrids. The hybrids and five commercial checks were evaluated across ...
Control of Busseola fusca and Chilo partellus stem borers by Bacillus thuringiensis (Bt)-d-endotoxins from Cry1Ab gene Event MON810 in greenhouse containment trials
Previous testing of several public Bacillus thuringiensis (Bt)-maize events did not show control of the African stem borer (Busseola fusca Fuller), an important stem borer species, without which stewardship would be ...
Towards self sufficiency
Testing public Bt maize events for control of stem borers in the first confined field trials in Kenya
Transgenic maize (Zea mays L), developed using modified genes from the bacterium Bacillus thuringiensis (Bt), controls stem borers without observable negative effects to humans, livestock or the environment, and is now ...
Levels of control of Chilo partellus stem borer in segregating tropical Bt maize populations in Kenya
In Kenya, stem borers destroy an estimated 400,000 metric tons, or 13.5%, of farmers' annual maize harvest costing about US$80 millions. Bacillus thuringiensis (Bt) maize controls stem borers without harming humans, livestock ...