Nitrogen Fixation Biocontrol of plant diseases Hydroponic pathology Bacterial pathogens in water Environmental biotechnology Molecular biology and virology Integrated disease management Protozoan parasites Panama disease of bananas Plantation tree pathology White rust of sunflower Forestry/ tree pathology Biofilm physiology Soilborne disease Biological Nitrogen Fixation Biological control 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