BOT 552: PLANT DISEASE MANAGEMENT

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Propagule NumberGradients in pathogen densities and disease arefrequently observed.Factors that affect spatial variation in the amountof incoming inoculum lead to dispersal gradients.Dispersal Gradient CurveSource ofinoculumDistance (m or km)
Percentage DiseaseGradients in pathogen propagule density can result inDisease gradients = change in disease severity along astraight line away from the source of inoculum.Disease Gradient CurveSource ofinoculumDistance (m or km)
Page 1 and 2: PLANT DISEASE MANAGEMENTMajor Princ
Page 3: Major Principles of Plant Disease M
Page 6 and 7: C. Eradication of the Pathogen- Red
Page 8 and 9: E. Resistance of Plant to Pathogen-
Page 10 and 11: Disease TriangleHostTotal of all pr
Page 12 and 13: Therefore, disease management princ
Page 14 and 15: Understanding how disease cycles re
Page 16 and 17: DiseaseThis representation of plant
Page 18 and 19: Examples of Monocyclic DiseasesBlac
Page 20 and 21: DiseaseGraphically this type of pop
Page 22 and 23: Many of these pathogens are dissemi
Page 24 and 25: Examples of Polyetic Diseases:Some
Page 26 and 27: Other Concepts Related to Disease C
Page 30 and 31: The percentage of disease and the s
Page 32 and 33: DiseasePurpose of disease managemen
Page 34 and 35: Ways to reduce disease (inoculum) a
Page 36: Management Strategiesa Sanitationb

BOT 552: PLANT DISEASE MANAGEMENT

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