Evaluation of the insecticidal activity of two local plants aqueous extracts (Azadirachta indica (Meliaceae), Cassia siamea (Cesalpiniaceae)) on termites during the growth of Rice Nerica 1
Journal Title: Journal of Research in Biology - Year 2015, Vol 5, Issue 5
Abstract
This survey was conducted on an experimental parcel of the Agronomic High School of the National Polytechnic Institute Félix HOUPHOUET- BOIGNY (ESA-INPHB) of Yamoussoukro (Côte d’Ivoire). It aims to evaluate the insecticidal effect of 2 local plants aqueous extracts on termites (Azadirachta indica and Cassia siamea) dosed at 131.25 g powder/ L compared to a chemical pesticide (Chlorpyrifos ethyl) dosed at 480 g / L. A total of 11 termite species were collected from the plots. The fungus-growers with 6 species are the most dominant group. Four soil-feeder species and one wood-boring species were also collected. Only fungus-growers are present in the areas treated with plant extracts and chlorpyrifos ethyl. It was observed a high abundance of termites in heading stage of the rice growth. In maturity stage, ie 4 months after sowing the efficiency of chlorpyrifos ethyl decreased as plant aqueous extracts remain effective. Among the two tested plants, Azadirachta indica seems to be the most effective compared to Cassia siamea against termites. Chlorpyrifos ethyl could be used as a cure for its swift action on termites while Azadirachta indica could be used preventively and for crops whose destructive action is long term
Authors and Affiliations
Seraphin Yao Kan Diby, Akpa Alexandre Moïse Akpesse, Tenon Coulibaly, Annick Yamousso Tahiri, Philippe Kouassi Kouassi
Keywords
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