Genetics and Molecular Biology of Microorganisms, (New March 2000) Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 6 Biochemistry and Physiology of Microorganisms, (New March 2000) 5 Pesticides and Drugs; Control, (New March 2000) 5 Epidemiology 4 Host Resistance and Immunity 4 Microbial Ecology, (New March 2000) 4 Plant pathogens 4 Soil Biology 4 Techniques and Methodology 4 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 4 Diagnosis 3 Diagnosis of Animal Diseases, (New March 2000) 3 Diagnostic techniques 3 Disease control 3 Disease resistance 3 Genomics 3 Human diseases 3 Man 3 Microbial ecology 3 Mycorrhizal fungi 3 Mycorrhizas 3 Nodulation 3 Pathogenesis 3 Plant diseases 3 Vesicular arbuscular mycorrhizas 3 Aetiology 2 Antibacterial agents 2 Biological Control 2 Biological control 2