Theobroma cacao produces cocoa beans, an essential ingredient for the production of chocolate. This book recapitulates the research focusing on enhancing disease resistance in Theobroma cacao via two approaches: The first approach targeted improved understanding of the pathogenicity mechanisms of Moniliophthora perniciosa, the causal agent of witches' broom disease because of its economical impact in South America and the potential threat to unaffected areas in other continents. This approach involved identifying tomato varieties that differentially interact with M. perniciosa to study...