Description: 1 Introduction to Disease Management The Need for Disease Management Disease Management in Perspective A Guide to Plant Disease Management in Agricultural Systems Selected References 2 Diagnosis Introduction Systematic Approach to Diagnosis Procedures for Diagnosis of Diseases Induced by Biotic Agents Procedures for Diagnosis of Disorders Induced by Abiotic Influences Concluding Comments Selected References 3 Epidemiology: Dynamics of Interacting Pathogen and Host Populations Introduction Pathogen Reproduction and Epidemic Development Models of Epidemic Development Models and Disease Management Strategies Concluding Comments Selected References 4 Epidemiology: Influence of the Biotic Environment Pathogen-Vector Relationships Aphids Leafhoppers Other Arthropods Nematodes Fungi Nonvector-Pathogen Relationships Concluding Remarks Selected References 5 Effect of the Physical Environment Introduction Moisture Effects Temperature Effects Chemicals Concluding Comments Selected References 6 Disease Forecasting: Epidemiological Considerations Epidemiological Bases of Disease Forecasts Forecasts Based on Initial Inoculum or Initial Disease Forecasts Based on Secondary Inoculum Forecasts Based on Both Initial Inoculum and Secondary Cycles Implementation of Disease Forecasts Concluding Comments Selected References 7 Exclusion to Reduce the Amount of Initial Inoculum Quarantines Use of Pathogen-Free Propagating Material Cultural Techniques to Suppress Initial Pathogen Populations Concluding Comments Selected References 8 Physical and Chemical Techniques to Suppress Initial Disease Introduction Physical Techniques to Reduce Initial Inoculum Physical Techniques to Suppress the Efficacy of Initial Inoculum Chemical Treatments to Suppress Initial Disease Concluding Comments Selected References 9 Biocontrol Introduction Natural Biocontrol Introduction of Antagonists Modification of the Environment Conclusions Selected References 10 Plant Resistance: Effects and Mechanisms Effects of Plant Resistance on Pathogen Development Epidemiological Efforts of Plant Resistance Problems Attributable to Pathogen Variation Mechanisms of Resistance Concluding Comments Selected References 11 Use of Plant Resistance Resistance That Has a Large Effect Resistance That Has a Small Effect (Rate-Reducing) Use of Resistance to Pathogen Vectors Concluding Comments Selected References 12 Cultural Modifications to Suppress the Rate of Epidemic Development Modification of the Physical Environment Repulsion of Vectors Concluding Comments Selected References 13 Effects of Chemicals in Reducing the Rate of Disease Development Extent of Chemical Use Factors That Influence the Need for Chemical Application Effects of Chemicals Side Effects of Disease Management Chemicals Application Considerations Chemicals and Society Concluding Comments Selected References 14 Major Groups and Uses of Chemicals in Suppressing the Rate of Disease Development Inorganic Chemicals Organometallic Fungicides Organic Protectants Organic Systemics Oils and Surfactants Insecticides Concluding Comments Selected References 15 Disease Management in Practice Celery in Florida Corn in the Midwest Potatoes in the Northeast Peaches in South Carolina Cotton in California Concluding Comments Selected References

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