Regional Agricultural Research Station, University of Agricultural Sciences, Dharwad, Bijapur - 586101, Karnataka, (India).
1Director of Research, University of Agricultural Sciences, Dharwad-580 005, Karnataka, (India).
Studies on bio-efficacy of different Insecticides against sorghum aphid, Melanaphis sacchari (Zehntner) indicated that dimethoate showed 95.25 per cent reduction in aphid population at ten days after spraying followed by endosulfan (93.22%) and chlorpyriphos (91.13%) and gave significantly higher grain yield (27.17 q/ha), fodder yield (6.66 t/ha) and 1000-grain weight (31.88 g) followed by endosulfan (26.43 q/ha, 6.46 t/ha and 31.42 g respectively).
