THEKEYSTODISEASEMANAGEMENT From《EpidemiologyandPlantDiseaseManagement》,-353 Letusdefinediseasemanagementasthetotalofallactions,intentionalornot,thatservetoregulatedisease1evelssothattheyremainbelowtheeconomicthresho1d1evel;theactionscanbedirectedtowardasinglediseaseortowardalldiseasesthreateningacrop;theactions mayormay notfintoasystemofsupervisedorevenintegratedcontro1;diseasemanagementandpestmanagementarepartsofcropmanagement,:cropeconomics,populationdynamics,anddiseasecontroltechnology,Withcropeconomics,’s valuejudgmentmaybehighlysubjective,,refertotheappropriateliterature(Carlson,1971;Carlson&Main,1976;Ordish& Dufour,1969).onsiderationsarecrucialintheprocessleadingtoadecision fororagainstaction;Valuejudgmentsbyauthorities,consumers,merchants,'sjudgmentleads,implicitlyorexplicitly,eptabledamage. 1TheEconomicinjurylevelorDamageThresholdThestrategyof diseasemanagementistoto1eratedisease,
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