Larvicidal action of extracts from tithonia diversifolia against the dengue mosquito aedes aegypti (diptera: culicidae)
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Date
2012Author
Langat, K Bernard
Siele, K David
Nanyingi, O Mark
Mutai, K Charles
Rukunga, M Geoffrey
Mwandawiro, Charles
Ireri, Labane
Tonui, K Willy
Language
enMetadata
Show full item recordAbstract
The control of Aedes aegypti using synthetic insecticides have caused tolerance and injury to non-target organisms, thus needing botanical insecticides. This study involved extraction and evaluation of Tithonia diversifolia for larvicidal activities against Aedes aegypti. Hexane, acetyl acetate and methanol extracts from the root bark of Tithonia diversifolia were assayed. Bioassays were carried out according to recommendations of World Health Organization. Doses assayed ranged from 50 to 2430 mg/l. The hexane extract was more lethal than methanol and ethyl acetate. The bioactivity of phytochemicals varied significantly. Hexane extracts should be analyzed and isolated to determine the active principles.
URI
http://www.tandfonline.com/doi/abs/10.1080/22311866.2012.10719107#.VRPhuuE3iM8http://hdl.handle.net/11295/81713
Citation
Journal of Biologically Active Products from Nature Volume 2, Issue 1, 2012Publisher
University of Nairobi
Collections
- Faculty of Health Sciences (FHS) [10385]