Nitrogen Fixation Biocontrol of plant diseases Hydroponic pathology Bacterial pathogens in water Environmental biotechnology Molecular biology and virology Integrated disease management Panama disease of bananas Plantation tree pathology White rust of sunflower Forestry/ tree pathology Biofilm physiology Soilborne disease Phytonematology Biological Nitrogen Fixation A survey and study of the plant pathogens reducing yields of indigenous food crops and the transmission and control of these pathogens Postharvest technology and food safety