Plant Breeding and Genetics 50 Plant Pests, (New March 2000) 49 Plant pests 45 Horticultural Crops, (New March 2000) 44 Plant Production 42 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 37 Plant diseases 35 Plants 34 Pest control 33 Taxonomy and Evolution 33 Agricultural Economics 32 Crop Produce 32 Livestock 31 Natural enemies 30 Taxonomy 30 Animal Nutrition (General) 29 Biological Control 28 Field Crops, (New March 2000) 28 Food Composition and Quality 28 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 28 Plant pathogens 28 Techniques and Methodology 28 Insects 26 Man 26 Plant Physiology and Biochemistry 26 Animal Genetics and Breeding, (New March 2000) 25 Biological control 25 Insect pests 25 Animal nutrition 24 Crop production 24