DOI | https://dx.doi.org/10.17582/journal.hv/2022/9.1.1.6 Citation | Mollasadeghi, V. and S. Elyasi. 2022. The effect of pars humic (Ammonium humate) on reducing damage caused by potato virus Y in cultivars agria. Hosts and Viruses, 9: 1-6.