University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India.
*Part of the approved Ph.D. thesis submitted, by A.S. Vastrad, to Univ. Agril. Sciences, Dharwad - 580 005, Karnataka, India.
Studies conducted on ovicidal action of methomyl, profenophos, cypermethrin, thiodicarb, fipronil, polytrin C-44, lufenuron, fenvelerate + sesame oil and fenvelerate + honge oil revealed that profenofos and combinations of fenvalerate + honge oil and fenvalerate + sesame oil caused 57.85 to 69.26% egg mortality of P. xylostella and were significantly superior to other treatments. Among the vegetable oils tested alone, honge oil recorded significantly higher egg mortality (17.18 per cent) than sesame oil (9.50 per cent). The egg mortality was generally higher on the upper leaf surface (60.55%) than the lower (39.12%).
