Project R8478 sought to underpin promotion of sustainable control of bean root rots through resistant varieties and soil amendments by addressing key scientific constraints investigated in previous projects R7568 and R8316. Activities included testing methods for extracting DNA from various soil types, screening isolates of species pathogenic to beans for their potential use as biocontrol agents against the causative organisms of bean root rot disease, and production of manuals on identification and quantification of Fusarium solani f.sp phaseoli and Pythium spp.