http://ir.lib.ruh.ac.lk/handle/iruor/12309 2026-04-26T17:09:25Z 2026-04-26T17:09:25Z http://ir.lib.ruh.ac.lk/handle/iruor/12745 2023-05-15T10:00:39Z 1998-01-01T00:00:00Z

Cover page

1998-01-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/12743 2023-05-15T09:58:38Z 1998-01-01T00:00:00Z

Contents

1998-01-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/12742 2023-05-15T09:56:13Z 1998-01-01T00:00:00Z

Editorial Board

1998-01-01T00:00:00Z Dharmasena, C.M.D. Simmonds, S.M.J. Blaney, W.M. http://ir.lib.ruh.ac.lk/handle/iruor/12741 2023-05-15T09:54:43Z 1998-03-15T00:00:00Z

Insecticidal activity of eight plant species on egg laying, larval development and adult emergence of Callosobruchus maculatus (F.) in cowpea Dharmasena, C.M.D.; Simmonds, S.M.J.; Blaney, W.M. Freeze dried powdered leaves of Cymbopogum citratus (DC) Stapf, Cinnamomum camphora (L.) Nee & Eberm Ipomoea mauritiana Jacq. Tamarandus indicus L., Lantana camara L., Myroxylon balsumum (L.) Harm, Citrus aurantium L. and Vitex altisima L. were tested against Callosobruchus maculatus under nochoice and choice situations. Under no-choice situation, V. altisima at the rate of 5.0% w/w was highly effective as an ovipositional deterrent while T. indicus was effective as a larvicide. T. indicus tested under choice situation at the rate of 1.0 % w/w, was effective as an ovipositional deterrent as well as a repellant. V. altisima tested at the same rate, was effective only as an ovipositional deterrent.

1998-03-15T00:00:00Z