Efficacy of two soil insecticides against prepupa and pupa of mango leaf cutting weevil, Eugnamptus marginellus Fst. (Coleoptera: Curculionidae).
Rafiquzzaman M. D., Maiti B.
Author Affiliation: Dept. of Agril. Entomology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur - 741252, Nadia, West Bengal, India.
Journal of Interacademicia 2 : 335-338
Abstract : Two soil insecticides, chlorpyriphos [chlorpyrifos] (0.06 and 0.08%) and aldrin (0.03 and 0.05%), were evaluated under laboratory conditions against prepupa and pupa of the mango leaf cutting weevil, Eugnamptus marginellus [Deporaus marginatus], a major pest of mango grafts in West Bengal. Both insecticides gave an excellent level of control with a contact period of one hour. Chlorpyrifos at 0.08% and aldrin at 0.5% produced rapid kill of prepupa and pupa within 120 and 96 hours, respectively. Aldrin at 0.03% gave a poor level of control.