Field experiments were conducted to evaluate the efficacy of newer insecticide against aphid on okra during 2018 and 2019. All the treatments were significantly effective over control plots in reducing the aphid population. The aphid population in treated plots ranged from 1.20 to 4.68 aphids per six leaves as against 6.29 aphids per six leaves in untreated plots. Data computed on per cent reducing in aphid population indicate that 25.7 to 80.9% population may be reduced by spraying of different insecticides. Among the insecticidal treatments, imidacloprid 17.8SL @100 ml/ha (1.20 aphids per six leaves) found most effective followed by thiamethoxam 25WG @100 gm/ha and acetamiprid 20SP @120 gm/ha. Whereas, emamectin benzoate 5SG @200 gm/ha (4.68 aphids/six leaves) found least effective in both the years.
Lal et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: