Okigbo RN, Nmeka IA. Control of yam tuber rot with leaf extracts of <i>Xylopia aethiopica</i> and <i>Zingiber officinale</i>. ajb [Internet]. 2005 Sep. 1 [cited 2026 Aug. 8];4(8):804-7. Available from: https://www.ajol.info/index.php/ajb/article/view/15186