Bioactive metabolites of Senna didymobotrya used as biopesticide against Acanthoscelides obtectus in Bungoma, Kenya.
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Date
2014-09
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Abstract
Post-harvest pests are known to cause severe losses of beans in particular the bean weevil, Acanthoscelides
obtectus, necessitating immediate and long term control measures. Convectional pesticides have been used for
decades to protect stored grain from pests, but their harmful environmental impact and pest resistance resulting
from the need for increased pesticide use have triggered researchers to search for eco-friendly, biodegradable and
potent biopesticides. The use of natural products derived from metabolic activity of plants may constitute a new
avenue of pest control. This paper describes phytochemical and biological investigations of leaves, root, and stem
bark crude extracts and isolated compounds of selected Kenyan plants used to control the bean weevil. Bioassays
tests of the compounds were done against brine shrimp to test their insecticidal activity against the bean weevil.
Antibacterial and antifungal activity of the crude extracts of S. didymobotrya was also done. The extracts of S.
didymobotrya showed high toxicity as well as adulticidal activity against bean weevil.
Description
Keywords
Biopesticides, Postharvest, Senna didymobotrya, Acanthoscelides obtectus
Citation
Mining J, Lagat Z O, Akenga T, Tarus P, Imbuga M, Tsanuo M K. Bioactive metabolites of Senna didymobotrya used as biopesticide against Acanthoscelides obtectus in Bungoma, Kenya. Journal of Applied Pharmaceutical Science. 2014 Sept; 4(9): 56-60.