D
Daniel Obeng-Ofori
Researcher at University Of Energy And Natural Resources
Publications - 82
Citations - 2763
Daniel Obeng-Ofori is an academic researcher from University Of Energy And Natural Resources. The author has contributed to research in topics: Sitophilus & Bactrocera invadens. The author has an hindex of 28, co-authored 78 publications receiving 2454 citations. Previous affiliations of Daniel Obeng-Ofori include University of Ghana & International Centre of Insect Physiology and Ecology.
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Biological activity of 1,8 cineole, a major component of essential oil of Ocimum kenyense (Ayobangira) against stored product beetles
TL;DR: The efficacy of 1,8 cineole as repellent, toxicant and grain protectant against Sitophilus granarius, S. zeamais, Tribolium castaneum and Prostephanus truncatus was investiaged in the laboratory using contact toxicity, grain treatment and repellency assays.
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Bioactivity of eugenol, a major component of essential oil of Ocimum suave (Wild.) against four species of stored-product Coleoptera
TL;DR: Development of eggs and immature stages inside grain kernels was completely inhibited by eugenol treatment, and Eugenol was also highly repellent to the four beetle species tested with overall repellency in the range of 80- 100%.
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Products derived from the leaves of Ocimum kilimandscharicum (Labiatae) as post-harvest grain protectants against the infestation of three major stored product insect pests
TL;DR: Ground leaves and the essential oil protected the grains against feeding by all three species, resulting in lower weight loss and number of damaged seeds compared with untreated grains, and protection against loss due to insects in traditional grain storage in developing countries.
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Toxicity and protectant potential of camphor, a major component of essential oil of Ocimum kilimandscharicum, against four stored product beetles
TL;DR: Camphor applied either topically, impregnated on filter papers or whole wheat and maize grains was highly toxic to all the four species and there was, however, highly significant reduction in toxicity in grain after only 24 h following treatment.
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Causes of low productivity of cocoa in Ghana: farmers' perspectives and insights from research and the socio-political establishment.
TL;DR: In this paper, a diagnostic study was carried out to better understand farmers' views on the problems of cocoa production in Ghana, where low productivity was identified as the main problem and the causes were classified into biological and socioeconomic factors.