Pathogens, Parasites and Infectious Diseases (Wild Animals), (New March 2000) 21 Natural enemies 16 Plant Pests, (New March 2000) 13 Biological Control 12 Biological control agents 12 Entomopathogens 12 Pathogens 12 Biological control 10 Plant pests 10 Pest control 9 Entomophilic nematodes 8 Insects 8 Nematoda 7 Taxonomy 7 Predators 6 Taxonomy and Evolution 6 Behaviour 5 Behaviour (Wild Animals), (New March 2000) 5 Host Resistance and Immunity 5 Insect control 5 Insect pests 5 Plant parasitic nematodes 5 Plant pathogens 5 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 5 Chemical control 4 Diagnosis 4 Environmental Pest Management 4 Epidemiology 4 Parasitoids 4 Pesticides and Drugs; Control, (New March 2000) 4