Bio-efficacy of novel insecticides and combination formulations on major insect pests of Sugarcane Early shoot borer and Top shoot borer
Keywords:
Bio-efficacy, insecticides, C.infuscatellus, S. excerptalisAbstract
The field experiment was conducted with a view to study the bio-efficacy of some novel insecticides and combination formulations on major insect pests of sugarcane early shoot borer and top shoot borer at the Agricultural Research Farm of Institute of Agricultural Sciences, BHU, Varanasi. In the present study Chlorantroniliprole 18.5 SC was also found to be effective against C. infuscatellus and significantly superior over other insecticidal treatments. Among the other treatments fipronil 5 SC 75 g a i ha-1 treatments stood second and next best treatment is Fipronil 40 WG + Imidacloprid 40 WG combination treatment stood third followed by Indoxicarb 14.5 SC, Cartap hydrochloride 50 SP, Spinosad 45 SC. The results obtained during the evaluation of test insecticides against Top shoot borer (S. excerptalis) revealed that Chlorantroniliprole 18.5 SC treatment was significantly superior over other insecticidal treatments. The second best chemical was Fipronil 5 SC, which were followed by Fipronil 40 WG + Imidacloprid 40 WG, Indoxicarb 14.5 SC, Cartap hydrochloride 50 SP, Spinosad 45 SC and Chloropyriphos that have nearly same per cent field bio- efficacy. Fipronil in combination with Imidacloprid as it was observed in case S. excerptalis was also proved effective.
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References
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