Arie Santy Siahaan, S. et al. 2026. First report of powdery mildew caused by Podosphaera xanthii on Ageratum conyzoides, in Indonesia. International Journal of Science and Environment (IJSE). 6, 1 (Feb. 2026), 849–855. DOI:https://doi.org/10.51601/ijse.v6i1.415.