Plant pathogens 57 Plant diseases 37 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 37 Plant Pests, (New March 2000) 35 Natural enemies 28 Pathogens 28 Plant pests 28 Taxonomy 27 Pest control 25 Biological Control 22 Biological control 22 Fungi 22 Taxonomy and Evolution 22 Horticultural Crops, (New March 2000) 21 Pathogens, Parasites and Infectious Diseases (Wild Animals), (New March 2000) 21 Insects 20 Biological control agents 19 Pathogen, Pest, Parasite and Weed Management (General) 19 Plant disease control 19 Epidemiology 18 Crop Produce 16 Insect pests 16 Plant Breeding and Genetics 16 Prion, Viral, Bacterial and Fungal Pathogens of Animals, (New March 2000) 16 Host Resistance and Immunity 15 Nematoda 15 Plant pathogenic fungi 15 Human diseases 14 Man 14 Plant Production 14