Otuonye Azuka Henry2026-08-312026-08-312023-04-23https://ir.funaab.edu.ng/handle/123456789/668A thesis submitted to the department of crop protection, college of plant science and crop production, Federal University of Agriculture Abeokuta in partial fulfillment of the requirements for the award of the degree of doctor of philosophy in plant pathology.enEvaluation of the Morpholgical, Molecular and Pathogenic Variability of the Blackpod Pathogen (Phytophthora species) of Cocoa (Theobroma cacao Linn.) in NigeriaThesis