Contents: Prefatory note,Medical mycology: role of environment on fungal infections in humans,Red rot and the environment,Environment and root knot nematode,Environmental studies on certain important phytophthora species in India,Role of biotechnology with special reference to plant pathology,Abiotic plant pathogens-the air pollutants,Viral and mycoplasma diseases of horticultural crops in relation to environmental factors and cultural practices,Impact of air pollutants on phylloplane microflora and disease development,Seed-borne virus disease of pisum and vigna crops.