Evaluation of insecticidal properties of rough cocklebur (Xanthium strumarium L.) against banana leaf and fruit scarring beetle (Basilepta subcostatum Jacoby)

Abstract

Chloroform extract of rough cocklebur (Xanthium strumarium L) was evaluated for its insecticidal properties at the Department of Entomology, Assam Agricultural University, Jorhat, against banana leaf and fruit scarring beetle (Besilepta subcostatum). Direct spray method was carried out with different concentrations (7, 5, 3, 2, 1 and 0.5%). Among all the concentrations highest mortality (100.00%) was found at 7.0% after 72 hours. The LC50 value was found to be 1.12% after 72 hours of treatment. Thus, the Xanthium strumarium extract has insecticidal potential against the target insect which can be the alternative for synthetic insecticides.