RESUMEN
The current work focuses on analysing the structural, optical, and anti-fungal efficacy of ZnO nanoparticles using well diffusion agar methods and minimum inhibitory concentration (MIC). ZnO nanoparticles were created using the sol gel method. To check the synthesized material's spatial and optical characteristics, XRD, UV, and RAMAN studies were performed. The median diameter of produced nanostructures is in the region of nanometre, according to XRD measurements. Results from Raman Spectroscopy for the nanostructure are provided, together with comparisons to current development theory and reliable experimental data. The band gap of the zinc oxide sample is found by graphing (h) 2versus input photon energy and gradually decreasing the linear component of the (h) 2 to zero. The band gap energy is expressed by the line's intersection with the energy axis. Calculations show that the energy band gap is 3.22eV.The fungus Ascochytafabae is in control of the Phaseolus vulgaris L. (beans) blight disease. It mostly affects the plant's stem, leaves, and fruits. Phaseolus vulgaris plant leaf with Ascochytafabae infection was isolated, and ZnO nanoparticle effects were observed. It emerged that the synthesized ZnO nanoparticles were highly efficient against Ascochytafabae. By using the well diffusion method and an absolute concentration of ZnO nanoparticles, the maximum inhibitory concentration was 15.0 ± 0.2 mm.