Bio-efficacy of different insecticides against ear head worm Helicoverpa armigera (Hubner) on sorghum at flowering stage
Nagare RD, Mohammad Ilyas, Ambilwade PP, Savde VG
The experiment was conducted during Kharif, 2015 at AICSIP, Sorghum Research Station, VNMKV, Parbhani (MS). And the findings was revealed that the mean population of ear head worm after spray at flowering stage was calculated the treatment with lowest population at first day after spray (0.70 ear head worm/panicle) was recorded in T7 (Emamectin benzoate 5 SG, 0.0018%. of water) which was closely followed by T5 (spray of Novaluron 10 EC, 0.01% @ 10ml/10 lit. of water), T1 (spray of Spinosad 45 SC, 0.0045%) and T3 (Quinalphos 25 EC) with 0.77, 0.93 and 0.95 mean ear head worms per panicle respectively. At third day after spray, fifth, seventh and ten DAS least ear head worm population was observed 0.75, 0.80, 0.85 and 0.95 in T7 (Emamectin benzoate 5 SG, 0.0018%), respectively.