NNADI, O. F.; ONONUJU, C. C.; IKWUNAGU, E. A.; ORIKARA, C. C. The Effect of Air Dried Leaf Powder and Burnt Leaf Ash of Different Plants on Root-knot Nematode (Meloidogyne spp.) on Okra (Abelmoschus esculentus L. Moench). Journal of Experimental Agriculture International, v. 41, n. 1, p. 1-8, 2 out. 2019.