Vol. 11, Issue 3 (2022)

Author(s):
Jai Singh, KK Mishra and Akhilesh Kumar Chaubey

Abstract:
Comparative potential IDM packages was evaluated and validated in three successive years to have dependable technology for field level management of yellow mosaic viral disease (YMD) of Black gram by integrating botanicals and insecticides. The basic theme behind such experiments was to come out deliverables which is not only capable to effectively check the disease but vis-a-vis residue free and sustainable. Here our proposed modules were sown the promise over prevailing farmer’s practices and build-up of veruliferous pest population was tends to be kept under check since initial stages of plant growth. This is what needed to manage the viral diseases like yellow mosaic of Uradbean. The safe consumable produce was insured by deploying insecticides in initial stage and before flowering where as botanicals and antifeedents were chosen for later stages of plant growth. The deliverable 4 which envisages seed treatment with Thiomethaxame followed by imidachloprid spraying at 20 DAS then one foliar spray of NSKE at 40DAS showed significantly lowest incidence of YMD (9.07 per cent) and white fly population (1.67 / three terminal leaves) with highest number of pods / plants (42.2/ plant), number seeds / pod(4.53 / pod); thousand seed weight (39.99 g), yield (716.67 kg ha) and it was cost effective, as it provide the highest benefit cost ratio(2.56:1). This is obvious observation with our experimentation that if initial population of vectors remain minimal level by insecticides in that case the botanicals and antifeedents efficacy used to be enhanced substantially. The package having seed treatment with Thiomethaxam -75 WG and one foliar spray of Imidachloprid at 20 DAS was rendered second best.