Rohayati Sitanggang, Syamsafitri, Noverina Chaniago. IDENTIFICATION AND MORPHOLOGICAL CHARACTERIZATION OF PERONOSCLEROSPORA MAYDIS CAUSING DOWNY MILDEW ON MAIZE IN LANGKAT AND SIMALUNGUN REGENCIES. IJSET [Internet]. 2025 Dec. 25 [cited 2026 Jun. 7];4(12):749-56. Available from: https://ijset.org/index.php/ijset/article/view/1531