Research Article
Efficacy of Soil Amendment with Leaf Powder of Hyptis suaveolens (L.) Poit in the Control of Meloidogyne javanica (Treub) Chitwood on the African Yam Bean, Sphenostylis stenocarpa (Hochst Ex A. Rich) Harms
Christopher C. Onyeke,
Godswill C. Ajuziogu,
Emmanuel E. Osayi,
Christopher D. Nwani and Gregory E. Odo