Electrostatic hand pressure knapsack spray system with enhanced performance for small scale farms

► We found 2-3 folds improvement in spray deposition. ► The optimum q/m value at 3.25 kV was found 0.419 mC/kg. ► The electrode should be located within the range of atomization. ► It is economical and environmental friendly. ► Easy to control or off in the absence of target, prevents pesticide wastage.