Animal Ecology Plant Pests, (New March 2000) 12 Insects 11 Natural enemies 10 Biological Control 8 Biological control 8 Pest control 8 Plant pests 8 Behaviour 7 Forests and Forest Trees (Biology and Ecology) 7 Animal ecology 6 Behaviour (Wild Animals), (New March 2000) 6 Biological control agents 6 Genetics and Molecular Genetics (Wild Animals), (New March 2000) 6 Insect pests 6 Nematoda 6 Plant Ecology 6 Taxonomy and Evolution 6 Biodiversity 5 Biological Resources (Plant) 5 Meteorology and Climate 5 Plants 5 Population dynamics 5 Biological Resources (Animal) 4 Forests 4 Pest management 4 Pests 4 Physiology and Biochemistry (Wild Animals), (New March 2000) 4 Reproduction, Development and Life Cycle (Wild Animals), (New March 2000) 4 Taxonomy 4