ANTIFUNGAL POTENTIAL OF PLANT BIOACTIVE COMPOUNDS, SULPHUR AND COPPER FORMULATIONS AGAINST Alternaria brassicicola (Schwein.) INFECTING KALES IN KIAMBU COUNTY, KENYA BY VICTOR VEDASTO (BSc. Agronomy) A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF SCIENCE IN CROP PROTECTION (PLANT PATHOLOGY OPTIONAL) IN THE SCHOOL OF AGRICULTURE AND ENVIRONMENTAL SCIENCES OF
