Pathogens Natural enemies 16 Entomopathogens 13 Biological control agents 12 Pathogens, Parasites and Infectious Diseases (Wild Animals), (New March 2000) 12 Biological Control 11 Plant Pests, (New March 2000) 11 Biological control 10 Entomophilic nematodes 9 Insects 8 Pest control 8 Plant pests 8 Insect pests 6 Taxonomy 6 Insect control 5 Nematoda 5 Plant pathogens 5 Predators 5 Parasites 4 Plant parasitic nematodes 4 Taxonomy and Evolution 4 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 4 Animal Ecology 3 Bacteria 3 Behaviour 3 Behaviour (Wild Animals), (New March 2000) 3 Biological pest control agents 3 Chemical control 3 Fungi 3 Parasitoids 3