Abstract
Effectiveness of integrated management practices comprising installing sticky white trap, spraying botanicals and synthetic insecticides and were tested against flower thrips and pod borers of mungbean at Pulses Research Center, Ishurdi, Pabna Bangladesh during two consecutive seasons of kharif-1 2012 and 2013, respectively. Thrips and pod borer infestation in mungbean reduced significantly by spraying of botanicals and synthetic insecticides. Spraying of Imidachloprid (Imitaf 20 SL) at the concentration of 0.5 ml/l gave the best results in reducing flower infestation and thrips population. Spraying Thiamethoxam + Chlorantraneliprol (Voliam flexi 300 SC) at the concentration of 0.5 ml/l also showed the best performance in reducing pod borers infestation in the years. The highest yield and their accordingly the highest net return was obtained from Voliam flexi 300 SC however, the highest benefit was brought from Imitaf 20 SL treated plots and this might be due to the higher cost of Voliam flexi brought down the profit margin and showed lower the marginal benefit cost ratio (MBCR) in the years compared to the case of Imitaf. Installing sticky white trap and spraying botanicals reduced flower infestation, thrips population and also pod borer infestation but not significantly different compared to the treatment of synthetic insecticides. Therefore, considering efficacy, yield and benefit spraying of Imidachloprid (Imitaf 20 SL) at the concentration of 0.5 ml/l is the most effective and economic approach for the management of flower thrips and pod borers in Bangladesh mungbean production.
