Pantnagar Journal of Research

Abstract

Frogeye leaf spot (FLS), caused by the fungal pathogen Cercospora sojina K. Hara, is an economically important foliar disease of soybean (Glycine max L. Merr.) that threatens production in warm and humid growing regions worldwide. This review synthesizes current knowledge on the pathogen biology, disease epidemiology, economic impact, and management strategies, with a particular emphasis on research from India and international contexts. The pathogen exhibits high genetic diversity and race complexity, and the emergence of quinone outside inhibitor (QoI) fungicide resistance has complicated chemical control. Integrated disease management combining host resistance, cultural practices, and judicious fungicide use remains essential. Recent advances in genomics, molecular markers, and novel biocontrol agents offer promising tools for sustainable FLS management. This review highlights key research findings, identifies knowledge gaps, and discusses future directions for improving disease control in the face of evolving pathogen populations and changing climatic conditions.