ROHAYATI SITANGGANG; SYAMSAFITRI; NOVERINA CHANIAGO. IDENTIFICATION AND MORPHOLOGICAL CHARACTERIZATION OF PERONOSCLEROSPORA MAYDIS CAUSING DOWNY MILDEW ON MAIZE IN LANGKAT AND SIMALUNGUN REGENCIES. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), [S. l.], v. 4, n. 12, p. 749–756, 2025. DOI: 10.54443/ijset.v4i12.1531. Disponível em: http://ijset.org/index.php/ijset/article/view/1531. Acesso em: 18 apr. 2026.