Comparative Study of Technology Options against Mung bean Yellow Mosaic and Mung Bean Yield parameters

Abstract

Efficacy of different technology options (T1: Farmers practice, T2: Azadirachtin 0.03% @ 2.5 l/ha (2 sprays), T3: Two sprays of Imidacloprid 17.8 SL @ 250 ml/ ha and T4: Two sprays of Dimethoate 30 EC @ 1.5 l/ ha for management of MYMV and yield parameters of mung bean. On Farm Trial (OFT) was conducted at farmer’s field of Kishanganj district by Krishi Vigyan Kendra, Kishanganj, Bihar during rabi-summer 2017. Maximum (33.13 %) reduction of disease over control was observed in T3 (Imidacloprid 17.8 SL @ 250 ml/ ha) followed by T4 (Dimethoate 30 EC @ 1.5 l/ ha) and T2 (Azadirachtin 0.03% @ 2.5 l/ha) with 26.95 and 25.07 per cent reduction in disease over control. Grain yield of 12.37, 11.23 and 10.32 q/ ha were obtained with T3 (Imidacloprid 17.8 SL @ 250 ml/ ha), T4 (Dimethoate 30 EC @ 1.5 l/ ha) and T2 (Azadirachtin 0.03% @ 2.5 l/ha), respectively. The B:C ratios of technology options were in the range of 1:1.69 to 1: 1.82. The B: C ratio was found maximum (1: 8.2) for T3(Imidacloprid 17.8 SL @ 250 ml/ ha) followed by T4 (Dimethoate 30 EC @ 1.5 l/ ha) and T2 (Azadirachtin 0.03% @ 2.5 l/ha) with B: C ratio of 1.69 and 1.48, respectively. The application imadicloprid (systemic insecticide) contributed more seed yield compared with control by