Epidemiology and Management of Root Diseases [Paperback]

Root disease epidemics, because much of the activity takes place in soil and out of sight, pose special challenges to growers who seek to manage them and to scientists who study them. All relevant topics of root disease epidemics and their management are presented: The critical aspects of specific disease components including inoculum, host roots, mycorrhiza and the soil environment are explored. Challenges of disease assessment and the temporal and spatial aspects of epidemic development are considered, and approaches to root disease management including host resistance, chemical, biological and cultural management are discussed in detail. The book fulfills the needs of researchers, teachers, and practitioners of plant pathology.Root disease epidemics, because much of the activity takes place in soil and out of sight, pose special challenges to growers who seek to manage them and to scientists who study them. All relevant topics of root disease epidemics and their management are presented: The critical aspects of specific disease components including inoculum, host roots, mycorrhiza and the soil environment are explored. Challenges of disease assessment and the temporal and spatial aspects of epidemic development are considered, and approaches to root disease management including host resistance, chemical, biological and cultural management are discussed in detail. The book fulfills the needs of researchers, teachers, and practitioners of plant pathology.1 Inoculum.- 1.1 Role of Inoculum in Root Disease Epidemics.- 1.1.1 Concepts of Inoculum.- 1.1.2 Soil Fungistasis.- 1.1.3 Inoculum Potential.- 1.1.4 Inoculum Efficiency.- 1.1.5 Inoculum Density.- 1.1.6 Spheres of Influence on Inoculum.- 1.2 Forms of Inoculum.- 1.2.1 Primary Inoculum.- 1.2.2 Secondary Inoculum.- 1.3 Survival of Inoculum.- 1.3.1 Idealized Survival Curve.- 1.3.2 Transformation of Survival Curves.- 1.4 Quantifying Inoculum in Soil.- 1.4.1 Direct Counts.- 1.4.2 Bioassays.- 1.4.3 Soil Assays.- 1.4.4 ChemlÃE