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The study was carried out to the evaluation of newer insecticides molucules against mango leaf hopper, Amritodes atkinsoni Leth. infesting in Maldah. The treatments Thiomethoxam 25 WG (0.3 gm/L) and Imidacloprid 17.8 SL (0.3 ml/L) were found highest per cent reduction (87.74% and 86.08%) against mango leaf hopper. Moreover, Clothianidin 50 WDG (0.25 gm/L), Difentheuron 50 WP and Acetamiprid 20 SP (0.5 gm/L) were next effective treatments against mango leaf hopper i.e. 81.22%, 79.98% and 77.73%, respectively. The other treatments viz, Cypermethrin 10 EC (1.5 ml/L), Buprofezin 25 EC (1.0 ml/L) and Azadirachtin 3000 PPM (3 ml/L) were found least effective against mango leaf hopper over control. The significantly highest fruit yield and benefit cost ratio was also found in treatment Thiomethoxam 25 WG (232.67 kg/tree and 4.33:1) in compression to farmer’s practice (192.43 kg/tree and 2.16:1).
Mandal et al. (Fri,) studied this question.