Ornamental Pest Management...IPM developed because.... No one method achieves long term pest...
Transcript of Ornamental Pest Management...IPM developed because.... No one method achieves long term pest...
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MSU ExtensionMSU Extension
Ornamental PestOrnamental PestManagementManagement
Training for CommercialTraining for CommercialPesticide ApplicatorsPesticide Applicators
Category 3bCategory 3b
Developed by Greg Patchan,Developed by Greg Patchan,MSU ExtensionMSU Extension
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Principles of Pest ManagementPrinciples of Pest Management
Chapter 1Chapter 1
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A pesticide applicator doesn’t justapply pesticides. Social and legalresponsibilities accompany theuse of toxic materials.
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Pesticide application mustprotect plant material from pestinjury without harmingnontarget organisms.
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IPMIPM✦✦ Use of all available strategies toUse of all available strategies to
manage pestsmanage pests–– Resistance, cultural practices, naturalResistance, cultural practices, natural
enemies, mechanical controls, pesticidesenemies, mechanical controls, pesticides
✦✦ Achieve acceptable yield & qualityAchieve acceptable yield & qualitywith least environmental disruptionwith least environmental disruption
✦✦ Not anti- pesticideNot anti- pesticide
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IPM developed because....IPM developed because....
✦✦ No one method achieves long termNo one method achieves long termpest managementpest management
✦✦ Pest management is a component ofPest management is a component ofplant careplant care
✦✦ It can reduce costsIt can reduce costs✦✦ Failures, resistance, pollutionFailures, resistance, pollution occurred occurred
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IPM Steps for LandscapesIPM Steps for Landscapes✦✦ Detection of agents injuring plantsDetection of agents injuring plants✦✦ Identification of agents injuringIdentification of agents injuring
plantsplants✦✦ Economic significanceEconomic significance✦✦ Selection of management methodsSelection of management methods✦✦ Evaluation and recordkeepingEvaluation and recordkeeping
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DetectionDetection✦✦ BenefitsBenefits
–– Low pest populationLow pest population–– Discover population and life stagesDiscover population and life stages–– Variety of management techniquesVariety of management techniques
availableavailable–– Less toxic methods of managementLess toxic methods of management
may be employedmay be employed
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MonitoringMonitoring✦✦ ScoutingScouting✦✦ TrapsTraps✦✦ Monitor weatherMonitor weather✦✦ Degree days (CAT Alerts)Degree days (CAT Alerts)✦✦ Phenology (Coincide)Phenology (Coincide)
–– plant development relationshipsplant development relationships✦✦ Recordkeeping (data sheets)Recordkeeping (data sheets)
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IdentificationIdentification✦✦ Know the healthy plantKnow the healthy plant✦✦ Know the agents damaging plantsKnow the agents damaging plants
–– cultural, environmentalcultural, environmental–– weedsweeds–– diseasesdiseases–– insectsinsects–– animalsanimals
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Diagnosing Plant DisordersDiagnosing Plant Disorders✦✦ Investigate the whole plantInvestigate the whole plant✦✦ SymptomsSymptoms✦✦ Plant historyPlant history✦✦ Investigation toolsInvestigation tools✦✦ ReferencesReferences✦✦ Diagnostic LabDiagnostic Lab✦✦ Multiple causes possibleMultiple causes possible
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Economic SignificanceEconomic Significance✦✦ Economic injury levelEconomic injury level
–– cost vs benefitcost vs benefit✦✦ Landscape injury levelLandscape injury level
–– unacceptable injuryunacceptable injury•• whose decision?whose decision?
✦✦ Action thresholdAction threshold–– pest level causing management actionpest level causing management action
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Nursery stock must be certified‘free’ from injurious insects anddiseases.
MDAMDA
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Setting Landscape InjurySetting Landscape InjuryLevelsLevels
✦✦ Damage to plant healthDamage to plant health
✦✦ Damage to plant appearanceDamage to plant appearance
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Factors Influencing theFactors Influencing theLandscape Injury LevelLandscape Injury Level
✦✦ Client tolerance of pest damageClient tolerance of pest damage✦✦ Landscape importance of host plantLandscape importance of host plant✦✦ Pests’ ability to reproduce & spreadPests’ ability to reproduce & spread✦✦ Expected pest reduction from naturalExpected pest reduction from natural
and/or applied controlsand/or applied controls
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Setting landscapeinjury levels thatreflect specificpest and hostconditions is thecornerstone ofIPM.
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Selection of MethodsSelection of Methods✦✦ Many factors limit pestMany factors limit pest
populationspopulations–– weatherweather–– natural enemiesnatural enemies–– plant defensesplant defenses–– controls implemented by peoplecontrols implemented by people
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Choose ManagementChoose ManagementMethods...Methods...
✦✦ Least toxic to nontarget organismsLeast toxic to nontarget organisms✦✦ Enhance natural controlsEnhance natural controls✦✦ May permanently limit the pestMay permanently limit the pest✦✦ Least hazardous for the applicatorLeast hazardous for the applicator✦✦ Most likely to stay on the target siteMost likely to stay on the target site
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Factors That Limit OptionsFactors That Limit Options✦✦ BudgetBudget✦✦ Availability of equipmentAvailability of equipment✦✦ Availability of laborAvailability of labor✦✦ TimeTime✦✦ Availability of productsAvailability of products✦✦ Public/client acceptance of methodsPublic/client acceptance of methods
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EvaluationEvaluation✦✦ Were plants protected from seriousWere plants protected from serious
injury?injury?✦✦ Negative consequences?Negative consequences?
–– environmental impactsenvironmental impacts–– promotion of other pestspromotion of other pests
✦✦ Practical?Practical?✦✦ Cost?Cost?
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MSU ExtensionMSU ExtensionPesticide EducationPesticide Education
Ornamental PestOrnamental PestManagement (Category 3B)Management (Category 3B)
Pest Management TechniquesPest Management TechniquesChapter 2Chapter 2
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Pesticides arePesticides arecommonly used forcommonly used forcontrolling pestscontrolling pestsbut they are notbut they are notthe only tool.the only tool.
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Pest Management TacticsPest Management Tactics✦✦ Short term suppressionShort term suppression
–– Pesticide applicationPesticide application
✦✦ Long term maintenance of pest levelsLong term maintenance of pest levels–– ResistanceResistance–– Environmental modificationsEnvironmental modifications–– Cultural practicesCultural practices–– Biological controlsBiological controls
•• ex. Japanese beetle managementex. Japanese beetle management
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Example:Example:Japanese beetleJapanese beetlemanagement.management.
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Plant susceptible topest attack.
Plant susceptible topest attack.
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Plant ResistancePlant Resistance✦✦ Influence of overall plant healthInfluence of overall plant health
–– Plant selectionPlant selection–– Cultural careCultural care–– Environmental modificationEnvironmental modification
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Plant ResistancePlant Resistance✦✦ GeneticsGenetics
–– SpeciesSpecies•• cultivarscultivars•• varietiesvarieties
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London plane tree and sycamore vary in theirLondon plane tree and sycamore vary in theiranthracnose anthracnose susceptibility.susceptibility.
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Cultural ControlsCultural Controls
✦✦ IrrigationIrrigation✦✦ DrainageDrainage✦✦ Soil fertilitySoil fertility✦✦ Soil aerationSoil aeration✦✦ ShadeShade
✦✦ ThinningThinning✦✦ Winter protectionWinter protection✦✦ Enhance waterEnhance water
penetrationpenetration✦✦ Reduce weedReduce weed
competitioncompetition✦✦ SanitationSanitation
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Black spot on roses.Black spot on roses.
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Mechanical and PhysicalMechanical and PhysicalControlsControls
✦✦ Hand RemovalHand Removal–– Egg massesEgg masses–– WeedsWeeds
✦✦ TrapsTraps–– MolesMoles
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Mechanical and PhysicalMechanical and PhysicalControlControl
✦✦ BarriersBarriers–– Rodent tree guardsRodent tree guards–– Gypsy mothGypsy moth
✦✦ RepellantsRepellants–– RodentsRodents
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SpiderSpider LacewingLacewing
Biological ControlBiological Control
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Biological ControlBiological Control
Parasitized Parasitized caterpillarcaterpillar
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Biological ControlsBiological Controls✦✦ Encourage existing beneficialsEncourage existing beneficials
–– Diverse landscapesDiverse landscapes–– Reduce pesticide use, select “friendly”Reduce pesticide use, select “friendly”
pesticidespesticides
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Biological ControlsBiological Controls✦✦ Supplement natural enemy populationsSupplement natural enemy populations
–– Insect releaseInsect release•• predators, parasitespredators, parasites
–– Pathogen-based insecticidesPathogen-based insecticides•• BtBt
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Ornamental PestOrnamental PestManagement (Category 3B)Management (Category 3B)
Application of PesticidesApplication of PesticidesChapter 3Chapter 3
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Choose the best pesticide.Choose the best pesticide.
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Selecting a PesticideSelecting a Pesticide
✦✦ Labeled for the pestLabeled for the pest
✦✦ Produces desired level of controlProduces desired level of control
✦✦ Minimal disruption to the environmentMinimal disruption to the environment
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PhytotoxicityPhytotoxicity
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Selecting a PesticideSelecting a Pesticide
✦✦ Not phytotoxicNot phytotoxic
✦✦ Compatible with plant managementCompatible with plant managementstrategiesstrategies–– “Friendly” to beneficials“Friendly” to beneficials
✦✦ Acceptable to the public, customersAcceptable to the public, customers–– Complex issueComplex issue
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Many pesticide choices.Many pesticide choices.
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Classifications of PesticidesClassifications of PesticidesClassificationClassification Targeted PestTargeted Pest••InsecticideInsecticide InsectsInsects
••AcaricideAcaricide Mites, ticksMites, ticks
••MiticideMiticide MitesMites
••FungicideFungicide FungiFungi
••BactericideBactericide BacteriaBacteria
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Classifications of PesticidesClassifications of PesticidesClassificationClassification Targeted PestTargeted Pest••HerbicideHerbicide WeedsWeeds
••AquacideAquacide Aquatic weedsAquatic weeds
••MolluscicideMolluscicide Snails and slugsSnails and slugs
••RodenticideRodenticide Mice, rats, rodentsMice, rats, rodents
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Signal WordSignal Word✦✦ Toxicity CategoriesToxicity Categories
–– DangerDanger (I) (I)
–– WarningWarning (II) (II)
–– CautionCaution (III) (III)
–– CautionCaution (IV) (IV)
“Danger” =most toxic
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Select “caution” pesticideswhen possible and avoidRUP’s!
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Pesticide Mode of ActionPesticide Mode of Action
✦✦ Broad spectrumBroad spectrum
✦✦ Residual pesticideResidual pesticide✦✦ ProtectantProtectant
✦✦ SystemicSystemic
✦✦ ContactContact
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✦✦ Pesticides arePesticides aremanufacturedmanufacturedin manyin manyformulations.formulations.
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Pesticide FormulationsPesticide Formulations
✦✦ E, EC = emulsifiedE, EC = emulsifiedconcentratesconcentrates
✦✦ WP =WP = wettable wettablepowderspowders
✦✦ F, FL =F, FL = flowables flowables
✦✦ G = granulesG = granules
✦✦ BaitsBaits
✦✦ InjectablesInjectables
✦✦ ImplantsImplants
✦✦ WSP = waterWSP = watersoluble packetssoluble packets
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Pesticide FormulationsPesticide Formulations✦✦ FormulationFormulation
–– Application methodApplication method
–– Risk when handlingRisk when handling
–– Risk of moving offRisk of moving offtargettarget
–– AdvantagesAdvantages
–– DisadvantagesDisadvantages
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MSU ExtensionMSU ExtensionPesticide EducationPesticide Education
ApplicationApplicationequipmentequipmentshould reflectshould reflectthe target plant,the target plant,pest, andpest, andpesticidepesticideformulation.formulation.
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MSU ExtensionMSU ExtensionPesticide EducationPesticide Education
SomeSomepesticidespesticides
areareformulatedformulated
asasinjections.injections.
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Pesticide ApplicationPesticide ApplicationEquipmentEquipment
✦✦ Injection and implantationInjection and implantation–– Possible tree injuryPossible tree injury
–– CostCost
–– Limited materialsLimited materials
–– No driftNo drift
–– Reduced injury to non-target organismsReduced injury to non-target organisms
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MSU ExtensionMSU ExtensionPesticide EducationPesticide Education
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Pesticide ApplicationPesticide ApplicationEquipmentEquipment
✦✦ Manual sprayersManual sprayers–– Compressed air sprayersCompressed air sprayers
•• Pressure drop off, settling, limited pressure &Pressure drop off, settling, limited pressure &volumevolume
–– Backpack sprayersBackpack sprayers–– Wick applicatorsWick applicators
•• “Targeted” application“Targeted” application
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Pesticide ApplicationPesticide ApplicationEquipmentEquipment
✦✦ Power SprayersPower Sprayers–– Small power sprayersSmall power sprayers–– Hydraulic sprayersHydraulic sprayers
•• Widely used for ornamentals, variableWidely used for ornamentals, variablepressure, volume, drift?pressure, volume, drift?
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Pesticide ApplicationPesticide ApplicationEquipmentEquipment
✦✦ Power SprayersPower Sprayers–– Rotary (disk) nozzle sprayersRotary (disk) nozzle sprayers–– Mist blowersMist blowers
•• Light weight, less water, drift?Light weight, less water, drift?
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Spray ApplicationSpray ApplicationTechniquesTechniques
✦✦ Select correct equipmentSelect correct equipment
✦✦ Adjust nozzles, pressure, etc.Adjust nozzles, pressure, etc.
✦✦ Apply to where pests are locatedApply to where pests are located
✦✦ Obtain thorough coverageObtain thorough coverage
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Spray Application TipsSpray Application Tips✦✦ Do Do NOTNOT spray into or with the wind spray into or with the wind✦✦ Use larger droplets in windy conditionsUse larger droplets in windy conditions✦✦ Thoroughly coat treatment areaThoroughly coat treatment area✦✦ For tall trees:For tall trees:
–– Use thin stream at top, changing to fan atUse thin stream at top, changing to fan atbottom, apply from inside out, top to bottombottom, apply from inside out, top to bottom
✦✦ Protect people, pets, wildlife, homes,Protect people, pets, wildlife, homes,etc.etc.
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Pesticide Record KeepingPesticide Record Keeping✦✦ Name of applicatorName of applicator✦✦ Address of applicationAddress of application✦✦ Name and concentration of pesticideName and concentration of pesticide✦✦ Amount of pesticideAmount of pesticide✦✦ Target pestTarget pest✦✦ Method and rate of applicationMethod and rate of application
Records
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Pesticide Record KeepingPesticide Record KeepingKeep records for at least one yearon general use pesticideapplications. Keep RUP records forthree years. Check with MDA forcurrent regulations.
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Ornamental PestOrnamental PestManagement (Category 3B)Management (Category 3B)
Pesticide SafetyPesticide SafetyChapter 4Chapter 4
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MSU ExtensionMSU ExtensionPesticide EducationPesticide Education
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Contact the MDA or MSU Extension tokeep current with changing pesticide rulesand regulations!
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Read the label beforeRead the label beforeselecting and applyingselecting and applyingany pesticide.any pesticide.
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Applicator SafetyApplicator Safety✦✦ You must comply with label guidelines -You must comply with label guidelines -
WPSWPS✦✦ Clean, service or replace gear regularlyClean, service or replace gear regularly✦✦ Wash gear and yourselfWash gear and yourself
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Applicator SafetyApplicator Safety
✦✦ Wear more gear during frequentWear more gear during frequentapplications or if pesticide sensitiveapplications or if pesticide sensitive
✦✦ Consider:Consider:–– Gloves, face and eye protection whenGloves, face and eye protection when
mixing,mixing,–– Plus hat and respirator for overheadPlus hat and respirator for overhead
applications.applications.
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Applicator CholinesteraseApplicator CholinesteraseLevelLevel
✦✦ For users ofFor users of carbamate carbamate and andorganophosphateorganophosphate insecticides. insecticides.
✦✦ Off season baseline level is required.Off season baseline level is required.✦✦ Testing program implemented by aTesting program implemented by a
doctor.doctor.
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Most poisonings resultfrom accidents,careless or ignorantuse!
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The best defenseagainst harm is to beprepared!
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First Aid and Safety MaterialsFirst Aid and Safety Materials
✦✦ Pesticide labelPesticide label✦✦ MSDSMSDS✦✦ Syrup of IpecacSyrup of Ipecac✦✦ First aid kitFirst aid kit✦✦ Eye washEye wash✦✦ DetergentDetergent✦✦ Clean waterClean water✦✦ Rubber glovesRubber gloves
✦✦ Change of clothingChange of clothing✦✦ Spill absorbentSpill absorbent✦✦ FireFire extinquisher extinquisher✦✦ Poison Center phonePoison Center phone✦✦ Hospital contactHospital contact
–– Phone numberPhone number–– DoctorDoctor–– DirectionsDirections
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Poisoning SymptomsPoisoning Symptoms
✦✦ Vary with:Vary with:–– Type of pesticideType of pesticide–– Where exposedWhere exposed–– Amount absorbedAmount absorbed–– Health of individualHealth of individual
✦✦ Onset of symptoms can happen:Onset of symptoms can happen:–– SuddenlySuddenly–– SlowlySlowly
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Remember, poisoning symptoms canbe similar to other ailments such asheat exhaustion, asthma or foodpoisoning.
Never give alcohol!
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✦✦ HeadacheHeadache✦✦ Skin irritationSkin irritation✦✦ SweatingSweating✦✦ Muscle twitchingMuscle twitching✦✦ CoughingCoughing✦✦ RespiratoryRespiratory
irritationirritation✦✦ Chest painChest pain
✦✦ VisualVisualdisturbancedisturbance
✦✦ Abnormal pupilsAbnormal pupils✦✦ NauseaNausea✦✦ ConfusionConfusion✦✦ ConvulsionsConvulsions✦✦ UnconsciousUnconscious✦✦ DeathDeath
Poisoning SymptomsPoisoning SymptomsPoisoning Symptoms
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First Aid ProceduresFirst Aid Procedures
✦✦ Varies according to the type ofVaries according to the type ofexposureexposure
✦✦ Symptoms may not occurSymptoms may not occurimmediatelyimmediately
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First Aid ProceduresFirst Aid Procedures
✦✦ After severe exposure After severe exposure DO NOT putDO NOT putoff first aid until you feel bad - Actoff first aid until you feel bad - Actimmediately!immediately!
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Dermal ExposureDermal Exposure✦✦ Remove contaminated clothingRemove contaminated clothing✦✦ Drench skin with waterDrench skin with water✦✦ Wash thoroughly with soapWash thoroughly with soap✦✦ Rinse completelyRinse completely✦✦ Wash and rinse againWash and rinse again✦✦ Dry, wrap in blanket or clean clothingDry, wrap in blanket or clean clothing
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Inhalation ExposureInhalation Exposure✦✦ Get to fresh airGet to fresh air✦✦ Do not attemptDo not attempt
rescue in enclosedrescue in enclosedarea without properarea without properrespiratory gearrespiratory gear
✦✦ Keep victim quietKeep victim quiet
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Inhalation ExposureInhalation Exposure✦✦ Prevent chilling,Prevent chilling,
don’t overheatdon’t overheat✦✦ Loosen tightLoosen tight
clothingclothing✦✦ Resuscitate, ifResuscitate, if
necessarynecessary✦✦ Keep air passagesKeep air passages
clearclear
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Eye ExposureEye Exposure✦✦ Act immediately.Act immediately.✦✦ Wash eyes with a gentle stream ofWash eyes with a gentle stream of
water. Use large amounts of water.water. Use large amounts of water.✦✦ Continue washing for 15+ minutes.Continue washing for 15+ minutes.✦✦ Use pure water only.Use pure water only.
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Oral ExposureOral Exposure
✦✦ If pesticide has entered mouth, but notIf pesticide has entered mouth, but notswallowed:swallowed:–– Rinse thoroughly.Rinse thoroughly.
✦✦ If swallowed:If swallowed:–– Follow label directions on whether to induceFollow label directions on whether to induce
vomiting.vomiting.
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Never induce vomiting if:1. Victim unconscious
2. Having convulsions
3. Petroleum based product
4. Corrosive pesticide
5. Label specifies not to induce vomiting
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Safe Pesticide HandlingSafe Pesticide Handling
Preventing accidentswhen handling pesticidesis the safest way toprotect:
- Applicators
- The environment
- Nontarget organisms
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Equipment SafetyEquipment Safety
✦✦ Check for:Check for:–– Worn hosesWorn hoses–– LeaksLeaks–– Applicator accuracyApplicator accuracy–– Truck and trailer safetyTruck and trailer safety
•• BrakesBrakes•• LightsLights•• TiresTires
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Mixing and Loading PesticidesMixing and Loading Pesticides✦✦ Attend tank while fillingAttend tank while filling✦✦ Follow label directionsFollow label directions✦✦ Wear protective clothingWear protective clothing✦✦ Don’t eat, smoke, chewDon’t eat, smoke, chew
gumgum✦✦ Lighted, well ventilatedLighted, well ventilated
area, shelter from windarea, shelter from wind
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Mixing Pesticides SafelyMixing Pesticides Safely✦✦ Keep fill hose out of solutionKeep fill hose out of solution✦✦ Anti-siphon valveAnti-siphon valve✦✦ Pour below eye levelPour below eye level✦✦ Measure accuratelyMeasure accurately✦✦ Rinse measuring toolsRinse measuring tools✦✦ Triple rinse containersTriple rinse containers
immediately immediately
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Triple Rinse and Pesticide RemovalTriple Rinse and Pesticide Removal
14.2
0.2
0.002
0.00005
0.0001 0.001 0.01 0.1 1 10 100
drained
1st rinse
2nd rinse
3rd rinse
Grams of activeingredient
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Applying Pesticides SafelyApplying Pesticides Safely✦✦ Remove, cover or washRemove, cover or wash
–– Pet dishes, toys, bird feeders, etc.Pet dishes, toys, bird feeders, etc.✦✦ Clients should:Clients should:
–– Move cars, close windowsMove cars, close windows✦✦ Beware of food plantsBeware of food plants
✦✦ Explain reentry intervalsExplain reentry intervals
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Applying Pesticides Safely Applying Pesticides Safely
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Storing hazardous materialsposes a great potential foraccidents and liability.
Limit the amount of pesticideskept in storage.
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Chemical fires can betoxic. You may need toreport storage of certainchemicals. Check withDNR (DEQ) or MSUE aboutSARA Title IIIrequirements.
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Exterior Pesticide StorageExterior Pesticide Storage✦✦ Not near wellNot near well
✦✦ SecuredSecured
✦✦ VentilatedVentilated
✦✦ PostedPosted
✦✦ Fire-proofFire-proof
✦✦ SecondarySecondarycontainmentcontainment
✦✦ Separate storageSeparate storagefor volatilefor volatileherbicidesherbicides
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Interior Pesticide StorageInterior Pesticide Storage✦✦ Inventory sheetInventory sheet
✦✦ Moderate temperaturesModerate temperatures
✦✦ NO SMOKINGNO SMOKING
✦✦ Fire extinguisherFire extinguisher
✦✦ Spill kitSpill kit
✦✦ Protective clothingProtective clothing
✦✦ Emergency telephoneEmergency telephonenumbersnumbers
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Storage regulations may change.Contact MDA or MSUE for updates.
Storage
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Pesticide ContainersPesticide Containers✦✦ Keep in original containerKeep in original container
✦✦ Protect labelsProtect labels
✦✦ Label all containersLabel all containers
✦✦ Do Do NOTNOT use use
food containersfood containers
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Pesticide ContainersPesticide Containers✦✦ Reseal open packagesReseal open packages
✦✦ Use old or damaged firstUse old or damaged first
✦✦ Mark mixing containersMark mixing containers
✦✦ Triple rinse and punctureTriple rinse and puncture
✦✦ Buy refillables or recycleBuy refillables or recycle
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Pesticide wastes canbe a problem.
- Don’t stock up
- Mix only what is needed
- Apply leftovers according to the label
- Use material in open containers
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Pesticide waste disposal isregulated. Contact the DNR(DEQ), MSUE or MDA forassistance.
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Pesticide SpillsPesticide Spills✦✦ ControlControl and stop the spill and stop the spill✦✦ ContainContain the spill the spill
✦✦ CleanClean up up the spill the spill✦✦ ReportReport the spill the spill
–– Contact MDA, MSUE, DEQ for latestContact MDA, MSUE, DEQ for latestproceduresprocedures
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Regulation 637Regulation 637✦✦ ContractsContracts
✦✦ IPMIPM
✦✦ Protective gearProtective gear
✦✦ NotificationNotificationregistryregistry
✦✦ PostingPosting
✦✦ Drift managementDrift management
✦✦ Use standardsUse standards
✦✦ Mixing andMixing andloadingloading
✦✦ WashingWashingequipmentequipment
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Professional ApplicatorProfessional Applicator
✦✦ CommunicateCommunicate
✦✦ Keep up to dateKeep up to date
✦✦ Train employeesTrain employees
✦✦ Look and act professionallyLook and act professionally
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Sell your skills andknowledge... consult!
Educate your customers!
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Educate CustomersEducate Customers✦✦ Not all organisms are pestsNot all organisms are pests
✦✦ Natural control allows some pestsNatural control allows some pests
✦✦ Is injury aesthetic or healthIs injury aesthetic or healththreateningthreatening
✦✦ Timing for pest managementTiming for pest management
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Educate CustomersEducate Customers
✦✦ Plants must be inspectedPlants must be inspected
✦✦ Targeted control tacticsTargeted control tactics
✦✦ Pesticides may or may not bePesticides may or may not bethe best method of pestthe best method of pestmanagementmanagement
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Ornamental PestOrnamental PestManagement (Category 3B)Management (Category 3B)
Non-Pest Disorders andNon-Pest Disorders and Landscape Weeds Landscape Weeds
Chapter 5Chapter 5
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Environmental & CulturalEnvironmental & CulturalDisordersDisorders
Most landscape plant injury is causedby poor growing conditions.
Weakened plants are more susceptibleto pest attack than non-stressed plants.
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Environmental and CulturalEnvironmental and CulturalDisordersDisorders
✦✦ ConstructionConstruction✦✦ SaltSalt✦✦ DessicationDessication✦✦ MechanicalMechanical
damagedamage✦✦ PesticidesPesticides✦✦ CompactionCompaction
✦✦ DroughtDrought✦✦ FloodingFlooding✦✦ Improper plantingImproper planting✦✦ Improper culturalImproper cultural
practicespractices✦✦ Poor plantPoor plant
selectionselection
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Toughenvironmental
conditions.
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Site too wet for this species.
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Tough environmental conditions.
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Poor plantingtechnique.
Note the twinethat has notdecayed.
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Herbicide injury through root absorption.
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Black walnut trees and stunted white pine.
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Excavationandconstructionactivitycaused thistree to dieearly.
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Poor site conditions post-construction.
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Flooded conditions suffocate roots.
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Desiccation
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Cold temperature injury.
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Lightening injury on oak.
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Environmental and CulturalEnvironmental and CulturalDisordersDisorders
✦✦ ConstructionConstruction✦✦ SaltSalt✦✦ DessicationDessication✦✦ MechanicalMechanical
damagedamage✦✦ PesticidesPesticides✦✦ CompactionCompaction
✦✦ DroughtDrought✦✦ FloodingFlooding✦✦ Improper plantingImproper planting✦✦ Improper culturalImproper cultural
practicespractices✦✦ Poor plantPoor plant
selectionselection
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Landscape WeedLandscape Weed
WEEDWEED = any plant = any plantgrowing where it is notgrowing where it is not
wanted.wanted.
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Change the location andany plant can become aweed.
For example, bluegrassinvading a flower bed is aweed.
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Weeds Compete For:Weeds Compete For:
✦✦ Growing spaceGrowing space
✦✦ WaterWater
✦✦ NutrientsNutrients
✦✦ SunlightSunlight
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Knotweed is tolerant of compacted soil.
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Weeds are Indicators of SiteWeeds are Indicators of SiteConditionsConditions
✦✦ Hot soilHot soil–– PurslanePurslane, spurge, spurge
✦✦ Compacted, wetCompacted, wet–– Annual bluegrassAnnual bluegrass
✦✦ Wet, shadyWet, shady–– Rough bluegrass, horsetailRough bluegrass, horsetail
✦✦ Deep shadeDeep shade–– Ground ivy, chickweedGround ivy, chickweed
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Weeds can...
- Girdle plants
- Harbor pests
- Injure people
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Vines can girdle established plants.
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✦✦ MonocotsMonocots: parallel leaf veins, growth: parallel leaf veins, growthpoints at/below soil levelpoints at/below soil level–– Grass familyGrass family
•• Crabgrass,Crabgrass, quackgrass quackgrass–– Sedge familySedge family
•• NutsedgeNutsedge–– Lily familyLily family
•• Wild garlicWild garlic
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✦✦ DicotsDicots: net-like leaf veins, diverse growing: net-like leaf veins, diverse growingpointspoints– Composite family
• Dandelions, thistles– Mustard family
• Shepherd's purse– Carrot family
• Wild carrot
Many others
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Stages of Weed DevelopmentStages of Weed Development
✦✦ 1. Seedling1. Seedling
–– Tender, vulnerableTender, vulnerable
✦✦ 2. Vegetative2. Vegetative
–– Great uptake ofGreat uptake ofwater and nutrientswater and nutrients
✦✦ 3. Seed production3. Seed production–– Reduced uptake, energyReduced uptake, energy
directed to flowers, fruitdirected to flowers, fruit
✦✦ 4. Maturity4. Maturity
–– Little uptake or energyLittle uptake or energyproductionproduction
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✦✦ Annual weeds: live one yearAnnual weeds: live one year–– Summer annuals: Summer annuals: seed and die by winter.seed and die by winter.
•• PigweedPigweed, crabgrass, crabgrass
–– Winter annuals: Winter annuals: germinate in lategerminate in latesummer,summer, overwinter overwinter, produce seed, die the, produce seed, die thenext season.next season.•• Chickweed,Chickweed, pennycress pennycress
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Lambsquarter
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✦✦ Biennial weeds: broadleaf plants withBiennial weeds: broadleaf plants witha two year life cyclea two year life cycle–– vegetative growth first yearvegetative growth first year
–– mature, seed and die in second yearmature, seed and die in second year•• Queen Anne’s lace, bull thistleQueen Anne’s lace, bull thistle
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Queen Anne’s lace.
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✦✦ Perennial weeds: live 3 or more yearsPerennial weeds: live 3 or more years–– most persistentmost persistent–– difficult to controldifficult to control–– propagulespropagules
•• rhizomes,rhizomes, stolons stolons, bulbs, tubers, bulbs, tubers
–– wide range ofwide range of dicots dicots and and monocots monocots•• quackgrassquackgrass, dandelion, poison ivy, dandelion, poison ivy
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Quackgrass
Dandelion
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Scout, identify and inventory populations.
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Managing Landscape WeedsManaging Landscape Weeds
✦✦ Maintain vigorous ornamentalsMaintain vigorous ornamentals✦✦ Prevent seed productionPrevent seed production✦✦ Prevent seed germinationPrevent seed germination✦✦ Limit emerged weeds earlyLimit emerged weeds early✦✦ Limit susceptible stages of matureLimit susceptible stages of mature
weeds.weeds.
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Alternative Weed ControlsAlternative Weed Controls✦✦ SanitationSanitation
✦✦ TillageTillage
✦✦ CultivationCultivation
✦✦ CuttingCutting
✦✦ MulchingMulching
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Chemical designed to control Chemical designed to controlweeds. Plant, soil andweeds. Plant, soil andweather conditions influenceweather conditions influenceherbicidal activity.herbicidal activity.
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HerbicideHerbicideCharacteristicsCharacteristics
Contact Systemic
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Herbicide CharacteristicsHerbicide Characteristics
Persistent NonPersistent
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Herbicide CharacteristicsHerbicide Characteristics
Selective NonSelective
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Herbicide CharacteristicsHerbicide Characteristics✦✦ Application in relation to plantApplication in relation to plant
developmentdevelopment–– Pre-plantPre-plant
•• Before crop is plantedBefore crop is planted
–– Pre-emergentPre-emergent•• Before weeds emergeBefore weeds emerge
–– Post emergentPost emergent•• After weeds emergeAfter weeds emerge
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Herbicides and PlantHerbicides and PlantCharacteristicsCharacteristics
✦✦ Growing pointsGrowing points
✦✦ Leaf shape and orientationLeaf shape and orientation
✦✦ Wax and cuticleWax and cuticle
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Herbicides and PlantHerbicides and PlantCharacteristicsCharacteristics
✦✦ Leaf hairsLeaf hairs
✦✦ DeactivationDeactivation
✦✦ Life cycle stageLife cycle stage
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Herbicide EffectivenessHerbicide Effectiveness
seedling vegetative flowering mature0
20
40
60
80
100
seedling vegetative flowering mature
% control
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Climatic FactorsClimatic Factors
✦✦ Relative humidityRelative humidity
✦✦ LightLight
✦✦ PrecipitationPrecipitation
✦✦ TemperatureTemperature
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Ornamental PestOrnamental PestManagement (Category 3B)Management (Category 3B)
Biology and Management of PestsBiology and Management of PestsChapter 6Chapter 6
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A “stab in the dark” approach topest management is seldomeffective.
It may injuredesirableorganisms.
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Effective Pest ManagementEffective Pest Management
✦✦ Requires...Requires...–– Knowledge of pest life cycleKnowledge of pest life cycle–– Feeding habitsFeeding habits–– HostsHosts–– Environmental interactionEnvironmental interaction–– Reproductive behaviorReproductive behavior
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Diseases of OrnamentalsDiseases of Ornamentals✦✦ DiseaseDisease = disturbance of normal = disturbance of normal
plant function.plant function.–– NoninfectiousNoninfectious ( (abioticabiotic))
•• EnvironmentalEnvironmental•• Cultural practicesCultural practices
–– InfectiousInfectious•• FungiFungi•• BacteriaBacteria•• VirusVirus
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Apple Scab Life CycleApple Scab Life Cycle
infectedleaves fallWinterfungus overwinters on
fallen leaves
Springspores blown to
new leaves
leaf to leafinfection
Summer
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Plant DiseasesPlant Diseases
✦✦ Grouped according to:Grouped according to:
–– Causal agentCausal agent
–– Symptoms they produceSymptoms they produce
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Disease SymptomsDisease Symptoms✦✦ Leaf spotsLeaf spots
✦✦ ScabScab
✦✦ RustsRusts
✦✦ Powdery mildewPowdery mildew
✦✦ MosaicsMosaics
✦✦ ChlorosisChlorosis
✦✦ ScorchScorch
✦✦ Witches’ broomWitches’ broom
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Disease SymptomsDisease Symptoms
✦✦ AnthracnoseAnthracnose
✦✦ CankersCankers
✦✦ BlightsBlights
✦✦ WiltsWilts
✦✦ DeclineDecline
✦✦ GallsGalls
✦✦ RotsRots
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ScabScab
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RustRust
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Cedar-Hawthorne RustCedar-Hawthorne Rust
Cedar-Apple RustCedar-Apple Rust
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Powdery MildewPowdery Mildew
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MosaicMosaic
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ChlorosisChlorosis: Oak and Maple: Oak and Maple
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Witch’s broom caused by Witch’s broom caused by AnthracnoseAnthracnose
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Anthracnose Anthracnose on foliage and in woody tissue.on foliage and in woody tissue.
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FireblightFireblight on Mountain Ash on Mountain Ash
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Root rot problem Root rot problem on Rhododendronon Rhododendron
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Common symptom Common symptom of tree decline.of tree decline.
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Host SusceptibilityHost Susceptibility
✦✦ Plant selectionPlant selection
✦✦ Plant partsPlant parts
✦✦ VigorVigor
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Weather ConditionsWeather Conditions
✦✦ HumidityHumidity
✦✦ RainfallRainfall
✦✦ TemperatureTemperature
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MicroclimateMicroclimate✦✦ ShadeShade
✦✦ WindWind
✦✦ SaltSalt
✦✦ LocationLocation
✦✦ CrowdingCrowding
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Infectious DiseaseInfectious DiseaseManagementManagement
✦✦ ResistanceResistance–– Superior species, Superior species, cultivarscultivars, varieties, varieties
✦✦ AvoidanceAvoidance–– Appropriate site conditionsAppropriate site conditions
✦✦ EliminationElimination–– Sanitation; some fungicidesSanitation; some fungicides
✦✦ ProtectionProtection–– Most fungicidesMost fungicides
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AlthoughAlthoughcultural andcultural andenvironmentalenvironmentaldisorders aredisorders aremost common,most common,“bugs” are“bugs” areperceived asperceived asthe likely causethe likely causeof a problem.of a problem.
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Insects of OrnamentalsInsects of Ornamentals✦✦ Capable of wide variety of injuryCapable of wide variety of injury✦✦ May go through several life stagesMay go through several life stages✦✦ Activity and injury often seasonalActivity and injury often seasonal✦✦ Classified by physical characteristicsClassified by physical characteristics✦✦ Classified by behaviorClassified by behavior
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Insect Classification byInsect Classification byFeeding BehaviorFeeding Behavior
✦✦ Piercing - suckingPiercing - sucking✦✦ Leaf-chewingLeaf-chewing✦✦ Tent and case-makingTent and case-making✦✦ Gall-formingGall-forming✦✦ Root-feedingRoot-feeding✦✦ BoringBoring
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Piercing-sucking InsectsPiercing-sucking Insects
✦✦ AphidsAphids
✦✦ LeafhoppersLeafhoppers
✦✦ Plant bugsPlant bugs
✦✦ MealybugsMealybugs
✦✦ ThripsThrips
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Piercing-sucking InsectsPiercing-sucking Insects
AphidsAphids
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Piercing-sucking InsectsPiercing-sucking Insects
Pine Needle ScalePine Needle Scale
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Piercing-sucking InsectsPiercing-sucking Insects
Magnolia ScaleMagnolia Scale
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Piercing-sucking InsectsPiercing-sucking Insects
Sooty mold grows on the honey dewSooty mold grows on the honey dewsecreted from piercing-sucking insects.secreted from piercing-sucking insects.
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Piercing-sucking InsectsPiercing-sucking Insects
Plant BugPlant Bug
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Piercing-sucking InsectsPiercing-sucking Insects
Leaf Hopper InjuryLeaf Hopper Injury
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Leaf-Chewing InsectsLeaf-Chewing Insects
✦✦ CaterpillarsCaterpillars
✦✦ SawfliesSawflies
✦✦ LeafminersLeafminers
✦✦ Leaf beetlesLeaf beetles
✦✦ WeevilsWeevils
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Leaf-Chewing InsectsLeaf-Chewing Insects
Eastern Tent CaterpillarEastern Tent Caterpillar
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Leaf-Chewing InsectsLeaf-Chewing Insects
Pine Pine SawflySawfly
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Leaf-Chewing InsectsLeaf-Chewing Insects
Oak leaf minerOak leaf miner(moth)(moth)
Birch Leaf MinerBirch Leaf Miner((sawflysawfly))
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Leaf-Chewing InsectsLeaf-Chewing Insects
Japanese BeetleJapanese Beetle
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Leaf-Chewing InsectsLeaf-Chewing Insects
Black Vine Weevil:Black Vine Weevil:Adult, pupae, larvae (Adult, pupae, larvae (leglesslegless), and ), and foliarfoliar damage damage
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Leaf-Chewing InsectsLeaf-Chewing Insects
White grub ofWhite grub ofJapaneseJapanesebeetle: a rootbeetle: a rootfeeder.feeder.
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Maple Bladder GallMaple Bladder Gall
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Cooley Cooley Spruce GallSpruce Gall
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Bronze Birch Borer exit holeBronze Birch Borer exit hole
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Insect ManagementInsect Management
✦✦ Protection for insects:Protection for insects:–– PupalPupal stage stage–– Waxy coatingWaxy coating–– GallsGalls–– BarkBark–– Leaf tissueLeaf tissue–– SoilSoil
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Insect Management-Insect Management-Consider:Consider:
✦✦ Susceptible lifeSusceptible lifestagestage
✦✦ Damaging stageDamaging stage✦✦ Period of feedingPeriod of feeding✦✦ Weather conditionsWeather conditions
✦✦ Number ofNumber ofgenerationsgenerations
✦✦ Host toleranceHost tolerance✦✦ Natural enemiesNatural enemies
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Non-Chemical InsectNon-Chemical InsectControlsControls
✦✦ Improve plant vigorImprove plant vigor
✦✦ Encourage natural enemiesEncourage natural enemies
✦✦ Select plants with resistanceSelect plants with resistance
✦✦ Modify the environmentModify the environment
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Natural enemies of insectscan provide safe, long lasting“control.” Pesticides canupset this balance andincrease some problems.
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InsecticidesInsecticides✦✦ Avoid problems:Avoid problems:
–– Monitor plants for insectsMonitor plants for insects
–– Protect beneficialsProtect beneficials
–– Time for appropriate life stageTime for appropriate life stage
–– Avoid preventative pesticide treatmentsAvoid preventative pesticide treatments
–– Use the least toxic materialsUse the least toxic materials
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MitesMites✦✦ Not insects (eight legs)Not insects (eight legs)✦✦ Rasp leaf cells and suck contentsRasp leaf cells and suck contents
–– Causes bronzingCauses bronzing✦✦ Some form webs or gallsSome form webs or galls✦✦ Weather dependent - prefer hot spotsWeather dependent - prefer hot spots✦✦ Rapid population build upRapid population build up✦✦ Paper testPaper test
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Spider mitesSpider mites WebbingWebbing
BronzingBronzing
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NematodesNematodes✦✦ Microscopic wormsMicroscopic worms✦✦ Commonly attack roots orCommonly attack roots or
vascular systemvascular system✦✦ Symptoms: wilting, stunting,Symptoms: wilting, stunting,
diebackdieback✦✦ ResistanceResistance✦✦ FewFew nematicides nematicides✦✦ Detection - MSU LabDetection - MSU Lab
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Snails and slugsSnails and slugsleave irregular holesleave irregular holesin foliage wherein foliage wherethey feed and slimethey feed and slimetrails where they’vetrails where they’vetraveled.traveled.
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Snails and SlugsSnails and Slugs✦✦ Soft bodied animalsSoft bodied animals
✦✦ Weather and site dependentWeather and site dependent
✦✦ Slime trailSlime trail
✦✦ Not controlled by Not controlled by insectinsecticidesicides
✦✦ Sanitation and trapsSanitation and traps
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VertebratesVertebrates✦✦ Cause damage by:Cause damage by:
–– ChewingChewing
–– RubbingRubbing
–– DrillingDrilling
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Squirrel damageSquirrel damageRabbit damageRabbit damage
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Wildlife control in urban areas can bedifficult. Consider using barriers,repellants and pest removal tactics.
Excluding mice, moles andchipmunks, trapping vertebrates isregulated by MDNR.
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THETHEENDEND
Prepared by :
Greg Patchan, Julie Stachecki, and Kay SichenederMSU Extension Pesticide Education Program