BOT 552: PLANT DISEASE MANAGEMENT

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The percentage of disease and the scale for distancevary with the type of pathogen or its method ofdispersal, being small for soilborne pathogens orvectors and larger for airborne pathogens.Disease gradients can also be caused byenvironmental gradients such as, variations in soiltype, fertility, or gradual changes in microclimate.
Disease IntensityVariation in pathogen density as the result ofdispersal gradients or other causes are importantrelative to the impact of a Dose Response on disease.Dose-Reponse CurveInoculum Dose
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 28 and 29: Propagule NumberGradients in pathog
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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