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Introduction: Why do we need systems approaches to manage plant diseases?
N. J. GRUNWALD (1). (1) Oregon State University, Department of Botany and Plant Pathology, US Department of Agriculture-Agricultural Research Service, Horticultural Crop Research Unit, Corvallis , OR, U.S.A.

Crop and food production systems are complex operations that have to balance and optimize various agronomic and economic factors that are often working against each other including pests and pathogens. Systems approaches were pioneered in the food industry and are now gaining acceptance in crop production systems. A systems approach is used to minimize the risk of food- or crop-associated pests and pathogens. A systems approach consists of a Hazard Analysis of Critical Control Points (HACCP) to identify, evaluate and correct sources of hazards such as pest and/or pathogens. Several flavors of systems approaches have been implemented in the food industry and more recently in crop production systems. This symposium will explore the implementation, use, and benefits of using systems approaches for managing microbes and pathogens in food and plant production systems.

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