Taylor, A., R. Bonafos, M. Chovelon, C. E. Parvaud, A. Furet, N. Aveline, C. Bertrand, and P. A. Marchand. “Equisetum Arvense (horsetail) Extract: The First Approved Basic Substance Allowed for EU Crop Protection”. International Journal of Bio-resource and Stress Management 13, no. Jun, 6 (June 27, 2022): 566–577. Accessed June 30, 2024. https://ojs.pphouse.org/index.php/IJBSM/article/view/4254.