Njenga, Joshua Kinene Efficacy of Neem, Tithonia and Tephrosia leaf extracts in management of Root-Knot Nematodes in French Beans (Phaseolus Vulgaris L.) in Tharaka Nithi County - Chuka, Kenya Chuka University 2019 - 91 leaves Subjects--Topical Terms: 1. Root-Knot Nematodes---control LC Class. No.: THE SB 998 / .J67 2019