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New mosquito larvicidal tetranortriterpenoids from Turraea wakefieldii and Turraea floribunda.
- Mary W. Ndung’u, B. Kaoneka, +5 authors B. Torto
- Chemistry, Medicine
- Journal of agricultural and food chemistry
- 11 August 2004
The crude methanol extracts of the root barks of Turraea wakefieldii and Turraea floribunda were found to show mosquito larvicidal activity against third-instar larvae of Anopheles gambiae sensu… Expand
Do diatomaceous earths have potential as grain protectants for small-holder farmers in sub-Saharan Africa? The case of Tanzania
Participatory on-farm field trials were set up over three storage seasons, from 2002 to 2005, in different agroecological zones of Tanzania to compare the efficacy of the enhanced diatomaceous earths… Expand
Turraea floribunda Hochst and Turraea cornucopia Styles & F . White ( Meliaceae ) against the brown ear tick Rhipicephalus appendiculatus Neumann
Extracts of the stem bark of Commiphora swynnertonii, the root bark of Turraea abyssinica, T. cornucopia, T. floribunda and the ripened fruits of Melia volkensii were tested for acaricidal activities… Expand
Diatomaceous Earth Dusts for Grain Protection by Small-scale Farmers in Tanzania and Zimbabwe.
Antifeedant activity of twenty six plant extracts and pure compounds from the root bark of Toddalia asiatica (L) (Rutaceae) against the anomalous emperor moth Nudaurelia belina (Saturnidae)
The antifeedant activity of petroleum ether (PE) (40-60%) extract of the root bark of T. asiatica and twenty five other plant extracts was investigated against the anomalous emperor moth N. belina .… Expand
Small-scale farmer utilisation of diatomaceous earths during storage. Series of quarterly and annual reports submitted to the Crop Post-Harvest Programme. Natural Resources Institute (NRI), Chatham,…
Diatomaceous earths, are soft whitish powders formed from the fossils of tiny organisms (planktons) which live in oceans, rivers and lakes. When diatomaceous earths come into contact with insects… Expand
Farmer post-harvest decision making: Guidelines for interviewing farmers. Natural Resources Institute (NRI), Chatham, UK.