前言 Unit l Plant and Disease Unit 2 Plant Disease Management Unit 3 An Arms Race between Host and Pathogen in Geffes Unit 4 Root-Knot Nematode Parasitism and Host Response Unit 5 Tomato Spotted Wilt Unit 6 Crown Gall Unit 7 Wheat Rusts unit 8 Smut Diseases of Cereal Crops Unit 9 Wheat Take—all Unit l0 Apple Scab Unit ll Introduction to Insect Unit l2 Wheat Aphid: Unit l3 European Corn Borer Unit l4 Insect Pests of Tree Fruits Unit l5 Insect Pest of Cotton Unit l6 Enhancing Insect Resistance in Rice through Biotechnology Unit l7 Insect Pests of Sugarcane Unit l8 Insect Pests of Cruciferous Crops Unit l9 Stored Product Insect Pests Unit 20 The Role of Pesticides in Agricultural Crop Protection Unit 21 Working towards More Efficient Application of Pesticides Unit 22 Biodegradation of Pesticides Unit 23 Classical Biological Control of Weeds in Europe Unit 24 Trichoderma:a Biocontrol Agent Unit 25 Biological Control of Insect Pests Unit 26 Why Study Rodent Populations7 Unit 27 Insect Pest Management in Potatoes Unit 28 Integrated Pest Management(IPM):Definition,Historical Development and Inaplementation and the Other IPM Unit 29 Abstracts in Entomology Unit 30 Abstracts in Plant Pathology Vocabulary