Bio-efficacy and economics of neem based formulations against Dasyneura lini Barnes.

摘要

Bio-efficacy of six neem-based formulations i.e. Neemarin at 0.15%, Neem India at 0.5%, Econeem at 0.5%, Nimbicidine at 0.5%, neem oil at 0.5%, NSKE at 5% along with endosulfan at 0.07% were tested against budfly on linseed cv. Neelum during rabi seasons of 2005-06 and 2006-07 in Uttar Pradesh, India. Results revealed that endosulfan at 0.07% gave significant lowest incidence of bud fly (1.9, 3.1 and 4.0%) at 3rd, 5th and 7th day after spray compared to rest of the treatments. However, NSKE at 5% was the best among neem based formulations. The lower incidence of budfly (3.5, 4.1 and 6.0%) was recorded with spray of NSKE at 5% on 3rd, 5th and 7th day after treatments, followed by nimbicidine at 0.5% (4.3, 4.3 and 6.1%), respectively. The highest yield (19.23 q/ha) was obtained in endosulfan at 0.07% treated plots followed by NSKE at 5% (17.07 q/ha). The highest B:C ratio was obtained (20.31/ha) in endosulfan followed by Nimbicidine, NSKE, neem oil, Econeem, Neemarin and Neem India.