part 1. general information. - fsc united states · represents a worst-case scenario from a...
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Part 1. General Information.
Application Submission date:
Name, and contact details of certification body requesting a temporary derogation:
RainforestAllianceC/OJamieOverton233 Broadway, 28th Floor New York, NY 10279 USA 802-923-3765
Active ingredient for which a derogation is being requested:
Oxyfluorfen:2-chloro-1-(3-ethoxyl-4-nitrophenoxy)-4-(trifluoromethyl)benzene
Trade name and formulation type of the pesticide:
PindarGT-Oxyfluorfen(40.31%),Penoxulam(0.85%)andotheringredients(58.84%).SolubleLiquid
Method of application and application equipment:
HandOperatedBackpacksprayersand/orAerialHelicopterApplication
Common and scientific name of the pest species:
Grassesandbroadleavedweeds(nativeandnon-native)presentinearlyestablishmentofconiferplantations.Seeappendix1.Forcompletespecieslist.
Name and FSC certification codes of certificate holders1
requesting a temporary derogation:
RoseburgResourceCompanySW-FM/COC-000134
Scope for which a temporary derogation is being requested:
RoseburgownershipinCalifornia,USA.Approximately174,000acres.Seeappendix2.forownershipmap. Type of forest, species and
expected forest area where use of the HHP in intended:
NorthernSierraMixedConiferForest.ThespeciesPindarGTwillprimarilybeusedoverarePonderosapine,Douglas-fir,whitefir,incensecedar,sugarpine,redfir,orJeffreypine.PindarGTwillbeusedasapre-emergentherbicidetreatmentintheearlyestablishmentofconiferplantations.
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Part 2. Specific Information
1. Demonstrated Need
a)Pleasedescribebrieflythesilviculturalsystem(methodsforsitepreparation,practicesforharvesting,regeneration,timebetweenrotations)intheMU(s)includedinthescopeoftherequestedderogation.
RoseburgResourcesCompanyutilizesacomplexeven-agedmanagementsystemcomprisedoftwoprimaryparts:1)harvestingoperations;and2)silviculturalpractices.Thesepartswillbediscussedindetailrespectively.
Roseburg’seven-agedmanagementsystemischaracterizedbymechanicalandconventionaltractorloggingoperationswhereslopesarerelativelymildandcableloggingoperationsonsteeperslopes.Allmerchantabletimberisremovedfromtheharvestunitinthissystemasidefromareaswithintheharvestunitdesignatedashabitatretention.
Silviculturalpracticesaredictatedbyandoccurinconjunctionwithharvestingoperations.TheprimarygoalofRoseburg’ssilviculturalprogramistogrowtreesinthemostcosteffectiveandefficientwaypossiblewhilemaintaininghighregardforresponsiblelandstewardship.ThisrequiresanintricatemanagementprogramasoutlinedinRoseburg’s“Long-termSustainedYieldTimberAnalysisStandEstablishmentProcedures”:
“Ontheground,RRCiscommittedtoaggressiveandintensivereforestationpractices.Asacompanyoperatingnearly174,000acresinCaliforniaalone,RRChasdevelopedeffectivemethodstoreproducehealthy,diverse,wellstockedandproductiveforests.Siteconditions,ofcourse,varyasdothemethodsemployedtoestablishplantedforests.
Intensivesitepreparationfollowsregenerationharvests.Thismayconsistofoneormoretreatmentsincludingpiling,burning,slashing,and/orcontoursub-soiling.Inaddition,chemicalvegetationmanagementcontrolwillbeusedpre-plantingtocontrolthosespeciesforwhichthistimingismosteffective.Chemicalsitepreparationallowstheuseofchemicalsthatwouldnotbeusedwithinanestablishedplantation.
Ataminimum,seedisacquiredthroughgeneralcollectionofthebestphenotypicspecimenslocallyavailable.RRCalsoisinvolvedinseveraltreeimprovementcooperativeswheregeneticallyimprovedPonderosaPineandDouglas-firarebeingdeveloped.Thisimprovedstockisnotgeneticallymodified,butsimplytheproductofselectivecross-breedingofsimilarhighqualityspecimens.Asworkprogressesinthisarena,RRCintendstodeployincreasingamountsofimprovedstock.RRCutilizesavarietyofnurseriesandstocktypes,andtailortheseedlingsselectedforthespecificsitestowhichtheywillbedeployed.Thedurationoftheplanting
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seasondependsontheweather,butisgenerallyfromFebruary(lowerelevations)throughMay(higherelevations).
Theplantingdensityvariesbysitebut,ingeneral,approximately350treesperacre(TPA)areplantedonan11-footby11-footspacing.Ourgoalistohave300wellestablishedseedlingsperacrewithintwogrowingseasonsafterplanting.Wheresurvivalisexpectedtobedifficult,evenwithcarefullytargetedseedlings,wemayplantmoretreesinitially.Ifthereisinsufficientsurvival,wewillreplantorinterplanttheareatoachieveourgoal.Intheeventthatwehaveexcessivein-growth,wewillusepre-commercialthinningtoreducethestockingtoalevelwhichwillallowustocarrythestandtoeitherrotation(50years)oracommercialthin.
Afterplanting,oneormorechemicaltreatmentsmaybenecessarytoreducecompetition.Plantationsareevaluatedonaunitbyunitbasis,andtreatmentsareappliedaccordinglydependentonthetypeanddensityofthecompetingvegetation.Treatmentswillbeappliedtoinsuresurvivalandgrowthoftheplantations.”
Figure1.Roseburg’seven-agedmanagementsystem.
b)PleasedescribetheIntegratedPestManagement(IPM)systeminplace,includingtheplantomonitorthedistributionanddensityofthetargetedpestorganismsintheMU(s).
Roseburg’sIPMisdesignedtoefficientlymanagevegetativecompetition(nativeandnon-native)usingavarietyoftools.Mechanicalandchemicalcontrolmeasuresareroutinelyemployed.Mechanicalsitepreparationwithtractors,excavators,mulchingheadsorrippersaidintheestablishmentofplantedforests,butdonotprovideenoughvegetationcontrolontheirowntoachieveplantedforestsuccess(Fiddleretal.,2000).Invasionbygrassesandgeminatingbrushstillrequiretheapplicationofherbicidestoachievesuccess(Newton&Dost,1984),especiallyduringthecriticalestablishmentphase.
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Othernon-chemicalvegetationcontrolmethodshavebeenlookedatheavilyovertheyearsandconsistentlyfailtoachievethedesiredresultsataneconomicallyviablelevel.Twoofthemorepopularnon-chemicalmethodsarehand-grubbingandmulchmats.McDonald&Fiddler(1992)lookedatover40vegetationmanagementstudies,16ofwhichinvolvedhandgrubbing.Costsperacreforcompletegrubbingwereveryhigh,andrepeattreatmentswereoftennecessary.Grubbingisparticularlytroublesome,mostnotablyisthatitfailstocontrolvegetationthatsproutsorhasrhizomes.Italsoneedstobedonerepeatedlytoachieveadequatelevelsofvegetationcontrol.Thestudiesalsonotedconsiderablesoildisplacementasaresultofgrubbing.
Withrespecttothelackofefficacyofnon-chemicalcontrolmeasures,avarietyofchemicaltechniquesareemployedaccordingtopeststhatarepresent.Thesetechniquesvarybothtemporallyandmethodologicallyaccordingtomanagementprescription.Thisflexibilityprovidesopportunityformaximumtreegrowthwhileavoidingthedevelopmentofchemicalresistanceamongtargetpestspecies.ItshouldbenotedthatchemicalcontrolmeasuresareemployedaccordingtorecommendationsprovidedbyalicensedPestControlAdvisor.Thisensuresthesafeandeffectiveuseofherbicides.
AsnotedinthedescriptionofRoseburg’ssilviculturalsystemanddepictedinFigure1,chemicaltreatmentofcompetingvegetationisanintegralpartofRoseburg’sIPMsystem.Figure1representsaworst-casescenariofromavegetationmanagementperspective,wheremultipleherbicideapplicationsarerequiredtomanagecompetingvegetation.Incontrast,Roseburgseekstominimizeherbicideapplicationthroughoutthecourseofstandrotation.Therefore,herbicidesareonlyappliedwhennecessaryinordertoreducecostsandtheamountofherbicideintheenvironment.Forexample,theimazapyrsitepreparationtreatmentcanbeveryeffectiveatreducingvegetativecompetitionpriortoplantationestablishmentandholdingthesitefreeofcompetingvegetationwellintothebeginningoftherotation.Inthissituation,subsequentherbicideapplicationswillbepostponedandpossiblyforegonesolongascroptreegrowthisuninhibited.Inallinstancesthedistributionanddensityoftargetedpestorganisms(competingvegetation)aremonitoredviafieldobservationonacontinualbasis.
TheFitforOxyfluorfen
Thechemicalpertinenttothisderogationapplicationisoxyfluorfen,aconstituentinthetrade-nameproductPindarGT.PindarGTisapre-emergentherbicideusefulforthecontrolofgraminoids,forbs,andsproutingwoodyvegetation.InRoseburg’scurrentrotationscheduleandtheoperationalstandardoftheforestryindustry,VelparDF(hexazinone)istheprimaryherbicideutilizedwhenconditionswarranttheuseofapre-emergentherbicide.PindarGT
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wouldputativelyreplacehexazinoneinRoseburg’smanagementprogramuponthegrantingofthisderogation.TheadditionofPindarGTwouldofferadditionalmanagementtoolsandenvironmentalbenefits.FromamanagementperspectivePindarGToffersgreatconifertolerancewhencomparedtohexazinone.Forinstance,Douglas-fir,whitefir,sugarpine,andincensecedararesusceptibletohexazinonedamage.Bycontrast,PindarGTfieldtrialsconductedbytheSierraCascadeIntensiveForestManagementResearchCooperativeindicatenotoleranceissueswhatsoeveramongthesesensitivespecies.PindarGThasalsoproventobemuchsaferintheenvironment.Table1showsacomparisonofhexazinoneversusoxyfluorfen,acomponentofPindarGTandthe“highlyhazardous”pesticidethisderogationapplicationisaddressing.Hexazinoneandoxyfluorfenoccupyextremeoppositesofthepesticidemovementratingspectrumwhereoxyfluorfenisextremelystableintheenvironmentandhexazinoneisveryunstable.AlongtheseguidelinesPindarGTprovestobemoreeffectiveandenvironmentallysoundthanhexazinone.
Table1.AcomparisonofhexazinoneandoxyfluorfenpesticidepropertiesfromtheNationalPesticideInformationCenter(http://npic.orst.edu/).
c)Pleaseindicatethethresholdsabovewhich,thedamagescausedbythetargetedpestorganismsareclassifiedassevereandhowtheyhavebeenestablished.Roseburgclassifiesdamagescausedbytargetedpestorganismsasseverewhenseedlingsurvivalisnegativelyimpactedtothepointofpartialorcompleteplantationfailure.Annually,Roseburgmonitorstheconditionoffall2-3year-oldplantationsforseedlingsurvivalviaseedlingstockingsurvey.Specialreforestationmeasuresaretakenwherestockingsurveysindicatepoorsurvival.Thesereforestationmeasurestypicallyincludere-plantingtheplantationincombinationofcrop-treereleaseviaherbicide.SignificantcostsareincurredbyRoseburgintheseseveredamagesituations.In2015alone,500acreswereunderspecialreforestationmanagementduetopoorseedlingsurvivalcausedbyvegetativecompetition.Thecostforspecialreforestationmanagementaverages$213.00peracre(Release-$113.00/ac,Interplant-$100.00/ac).Thesestocking/survivalthresholdshavebeenestablishedbytheCaliforniaForestPracticeRules(CFPR)issuedbytheCaliforniaDepartmentofForestry(CalFire),thegoverningbodyofall
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forestryoperationsinthestateofCalifornia.TheCFPRstatesthatanyareaonwhichtimberoperationshavetakenplacemustbeclassifiedasacceptablystockedbymeetingoneoftwoconditions.(1)Apointcountof300treesperacreor(2)theaverageresidualbasalareameasuredinstems1inchorlargerindiameter,isatleast85squareft.peracre.Theseconditionsmustbemetwithinfive(5)yearsaftercompletionoftimberoperationsunlessotherwisespecifiedintheCFPRhandbook.Aviolationmaybeissuediftheserequirementsarenotmet.Incasesofrepeatedstockingfailure,thestatecanassumereforestationeffortsandchargethelandownerforreforestationcostswhilefilingalienagainstthepropertyuntilalldebtshavebeenrepaid.TheseregulationsaloneestablishthethresholdsguidingRoseburg’spestmanagementprogram.d)PleaseindicatethepopulationsizeofthetargetedpestorganismintheMU(s).AccuratelyquantifyingthepopulationsizeofthetargetedpestorganismisverychallenginginthecaseofweedmanagementonthescalethatRRCoperates.Anyformofvegetationthatcompeteswiththeestablishmentandgrowthofplantationtreesisconsideredapestorganism,orweed,inthiscontext.TheextenttowhichweedsneedtobemanageddependsgreatlyontheabioticandbioticcharacteristicsoftheparticularmanagementsitewithintheMU.Therefore,thepopulationofthetargetedpestorganismvariesgreatly,and,asaforementioned,isdealtwithonaprovisionalbasis.e)PleaseindicatetheconclusionsofthecomparativeCost/BenefitAnalysisofusingtherequestedpesticideversusothernon-highlyhazardouscontrolalternatives,Thecost–benefitanalysisshallinclude,atminimum,thefollowingscenarios:•noactionvs.remedialcontrol(short-term)•noactionvs.preventivepractices(long-term)Thetablebelowdepictsacost-benefitanalysisassociatedwiththederogationofoxyfluorfen.ThistabledoesnottakeintoaccountthescaleonwhichRoseburgoperates.Totalcostsaregivenbytheacre,butwouldincreasebymanyordersofmagnitudewhenconsideringtheentireMU(~174,000acres).Similarly,thiscost-benefitanalysisdoesnottakeintoaccountinevitablecrop-treemortalityassociatedwiththechemicalandnon-chemicalalternativestoPindarGT.
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Treatment AverageCost($/Acre) BenefitandNotes
Chemical Chem. App. TotalPindarGT(Penoxsulam+Oxyfluorfen)
$60-$65 $40 $100-$105 Superiorconifertolerance.Chemicalcostsavingswhencomparedtoindustrystandardtreatment.Stabilityintheenvironment.Minimaldamagetoapplicationequipment.
VelparDF(Hexazinone)
$88-$100
$40 $128-$140 Hexazinoneisthecurrentindustryoperatingstandardforpre-emergentweedcontrol.Highchemicalcosts,lowconifertolerance,unnecessarymachinerywear,andmobilityintheenvironmentmakethisalternativealessattractiveoptionwhencomparedtoPindarGT.
Glyphosate
$20-$25 $90 $110-$115 AGlyphosatereleasetreatmentwouldbenecessaryintheeventthatapre-emergentherbicidetreatmentwasforegone.Here,applicationcostsarehighduetotheneedtoprotectcroptreesfromthecontactherbicide.Multipletreatmentswouldbeneededinordertoachievethelevelofcontrolneededforsuccessfulplantationestablishment,addingtocumulativecosts.
Non-Chemical Mechanical $200-$400 Initialcontrolfollowedbyeventuallossofsitetocompetingvegetation.
Conifergrowthandsurvivalsignificantlynegativelyimpactedwhencomparedtomechanical+chemicalorchemicalalone.(Fiddleretal.,1997)(Fiddleretal.,2000)(Southetal.,2001)(Weaver,1992)
Hand-Grubbing $400-$2000 Initialcontrolfollowedbyeventuallossofsitetocompetingvegetation.Repeat/continuoustreatmentnecessary.(McDonaldandFiddler,1992)
No-Action Currentvalueoftimberlands. None.Ano-actionalternativeinavegetationmanagementinnorthernCaliforniawouldresultinatypeconversionfromforesttoearlysuccessionalbrush/hardwood.Expectedfutureprofitswouldalsobeforegoneunderthisalternative.What’smore,accordingtotheCaliforniaForestPracticeRulesanyfailuretomeetthestockingrequirementscanresultinaviolation,andaneventualimposedlienonthepropertyuntilstockingrequirementsaremet.
Table2.Acost-benefitanalysiscomparingPindarGTtoalternativevegetationcontrolmeasures
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f)(Fillinonlyifyourepresentalarge-scaleMU)
PleaseprovideareviewcarriedoutbyindependentexpertsoftheCost/BenefitAnalysisine).
SeeAppendix3.forindependentexpertreviewofRoseburg’sCost/BenefitAnalysisine).
2. Specified measures to prevent, minimize and mitigate impacts.
a)Pleasedescribethebestmanagementpractices(BMP)thatwillbeimplementedintheMU(s)toprevent,minimizeandmitigatenegativesocialandenvironmentalimpactsoftheapplicationofHHPsduringtherequestedderogationperiod,coveringatminimum:applicationmethod,watercourses,landuseorterrainandweatherconditions.
LawsandRegulations
Priortoanypesticidebeingavailableforuse,itmustfirstgothroughacomprehensivefederalregistrationprocess.TheFederalEnvironmentalProtectionAgency(E.P.A)regulatespesticidesundertwomajorstatutes,FederalInsecticide,FungicideandRodenticideAct(FIFRA)andtheFederalFood,DrugandCosmeticAct(FFDCA).Theregistrationprocessinvolvesover120testsonproductchemistry,humanandenvironmentalassessmentforfoodsafety,toleranceinformationconcerningpesticideresiduesonfood,andproofthemanufacturingprocessisreliable.InadditiontotheFederalregistrationprocess,thestateofCaliforniathroughtheDepartmentofPesticideRegulation(D.P.R.)requiresapesticideregistranttogothroughCalifornia’spesticideregistrationprocess.ThisinvolvesmoretestinganddatagatheringspecifictoCalifornia.In1996,theFederalWorkerProtectionStandards(WPS)werealsoadoptedtofurtherprotectapplicators,fieldworkers,mixers/loadersandotherpeoplethatmaycomeincontactwithtreatedareas.Primarily,theactincreasedthescopeofpeoplewhorequirepesticidesafetytraining,increasedrestrictedentryintervalsandbroadenedtherequirementforpersonalprotectiveequipment.
Onalocallevel,pesticideapplicationsaremonitoredandenforcedbytheCountyAgriculturalCommissioner,aswellasthelocalWaterQualityBoard.Fieldinspectionsarecarriedoutbythecountyforbothgroundandaerialapplications.Usereportsofallpesticideapplicationsarefiledwithinsevendaysofapplication.
AllapplicationsmadebyRoseburgandtheircontractorsadherestrictlytothepesticidelabelinstructions.Itisaviolationoffederallawtoapplyapesticideinamannerinconsistentwithitslabeling.Theintentofthepesticidelabelistogiveclearandconcisedirectionsforusewhileminimizingriskstohumanhealthandtheenvironment.Thelabelhasspecificdirectionsforratesof
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application,personalprotectiveequipment(PPE),restrictedentryintervals(REI),hazardstohumansandwildlife,specialrestrictionsnearwater,listsofactiveingredients,directionsforcontainerdisposal,specificapplicationinstructionsandsignalworddenotingthelevelofhazard.Roseburgadherestostrictguidelinesformitigatingrisksassociatedwithpesticideapplications.Allchemicalapplicationsareappliedbylicensedapplicatorsorunderthesupervisionoflicensedapplicators.LicensedCaliforniaapplicatorsarerequiredtopassarigorousexamtoshowcompetence,andmayonlykeeptheirlicenseafteraccumulating20to40hoursofcontinuingeducationwithintheirtwoyearcertificationperiod.NoapplicationsaremadeunlessawrittenrecommendationhasbeenobtainedbyalicensedPestControlAdvisor(PCA).PCA’smusthaveatleastabachelor’sdegreeinforestry,cropscience,biologyorrelatedfield.PestControlAdvisorsmustcomplete40hoursofcontinuingeducationwithintheirtwoyearcertificationperiod.Thewrittenrecommendationmustbecompletedpriortothepesticideapplication,andonsiteduringapplicationalongwithmapsofareastobetreated.Nontreatmentareasandtheirbuffersmustalsobeidentifiedonthesemaps.Recommendationsincludesuchthingsasthepesticide(s)tobeused,therateatwhichthepesticideistobeapplied,dilution,methodofapplication,environmentalconditionsunderwhichthepesticidecanbeapplied,hazardsandmitigationmeasures,labelprecautions,bufferwidths,anddirectionsforuse.
Roseburg’sOperationalPractices
ApplicationsonRoseburg’spropertiesmaybeeitherhandoperatedbackpacksprayoraerialhelicopterapplications.Applicationtechnologiesplayaroleinmitigatingdriftandensuringtheherbicideisappliedinasafeandeffectivemanner.Aerialapplicationsutilizelargespraynozzlesthatproducelargerdropletsizeswhichminimizesdrift.Alongwatercoursebuffers,propertylines,sensitiveareas,etc.splitboomapplicationsareutilized.Thisiswheretheboomclosesttothesensitiveareaisshutoffandthebufferisflownwiththeoutsideboomonly.Utilizingsplitboomapplicationsinthismanorminimizestheaffectsofrotorwash.Nozzleangleisalsoacriticalfactorinreducingdriftbyreducingwindshearofthespraydroplets.Aerialapplicationsarenotflownwithwindspeedsgreaterthanfivemilesperhourorwhenthewinddirectionistowardssensitiveareas.AerialcontractorsworkingonRoseburg’spropertyutilizeGPStoaidinboundarydefinition,pathsalreadyflown,locationofbufferzones,andlocationofheliports.Roseburgrepresentativesarealwayspresentforaerialapplicationandmaintainradiocommunicationwithpilotatalltimes.
Inextremelysensitiveareasorwhereaerialapplicationsarenotapplicable,groundsprayoperationsareused.Bufferzonesandsensitiveareasareflaggedaheadoftime.Groundbroadcastapplicationsarecarriedoutwiththenozzlespointedinadownwarddirectiontoensureproperplacementofproduct.Applicatorsaretaughttosprayawayfromwaterandsensitiveareaswhendoingtheirbufferpasses.Groundapplicationsarenotdoneinwindsthatexceedtenmilesperhour.Largenozzlesarealsousedthatminimizedrift.Ifneeded,driftcontrolagentsmaybeaddedtothespraymix.
Protectionofstatewatersisoftheutmostconcern.Toourknowledge,nogroundwatercontaminationhaseveroccurredthroughleachingwithanyoftheproductsusedbyRoseburg.
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Oxyfluorfenhasastrongtendencytoabsorbtosoilparticlesandisrelativelyimmobileinthesoil.Thismakesleachingintogroundwaterunlikely.
Therearemanymitigationmeasuresusedforprotectionofwater.Bufferzonesareusedwithallpesticideapplications.Thewidthofbufferzonesvariesdependingonproductused,applicationmethod(groundoraerial),slope,soiltypeandtypeofwatercourse.AllapplicablewatercoursebufferspresentonthePindarGTlabelwillbestrictlyadheredtoandinmostcasessurpassed.PindarGTwillbeappliedinRoseburg’seven-agedregenerationunitswherewatercoursesareprotectedwithinWatercourseandLakeProtectionZone(WLPZ)buffers.WLPZbuffersarerequiredbytheCaliforniaForestPracticeRulesandgenerallymeetorfarsurpassthe25footwatercoursebufferwidthrequiredinthePindarGTlabel.Roseburgadherestowhicheverspraybufferisgreatest.
Roseburg’slandisusedfortimberproduction,andassuch,PindarGTwillbeusedineven-agedmanagementunitstocontrolgrassesandbroadleavedweedsthatarepresentduringthecriticalearlyestablishmentstageinconiferplantations.Earlyvegetationmanagementinplantedforestsisthemostcriticalfactorforachievingsuccessinthelong-term.Thisisespeciallytrueforhotaridclimateswherewateristhesinglemostimportantlimitingfactor.Powers&Ferrell,1996,showedthreetofourfoldincreasesinponderosapinestemvolumeeightyearsaftertreatmentwithherbicidescomparedtountreatedcontrols.Theyalsofoundsignificantgainsinnutrientavailabilityandsoilmoisturewherecompetingvegetationwascontrolled.Thestudywasreplicatedoverarangeofsitequalities,withthelargestgainsappearingonaveragetolowsites.
b)Pleasedescribepersonalprotectiveequipment’s(PPE)forworkershandlingwithHHP.
Allloaders,mixersorapplicatorsstrictlyadheretothelabelrequiredPPE.InthecaseofPindarGT,thelabelrequiredPPEis:Coverallsoverlong-sleevedshirtandlongpants,chemical-resistantfootwearplussocks,chemicalresistantgloves,safetyglasses,chemical-resistantheadgearwhenexposedoverhead,andchemicalresistantapronwhenexposedtotheconcentrate(mixing).
Duringapplications,onsitedecontaminationfacilitiesareavailablewhichincludesoap,disposabletowels,cleanchangeofclothes,eyewashandwashwater.Emergencymedicalinformationisavailableatthesiteforthenearesthospital.Allherbicidecontainersarelabeledwiththeproduct,rate,signalword,EPAnumber,manufacturerandthename,addressandphonenumberofthemanufacturer.Allworkersarerequiredtowashtheirhandsbeforeeating,drinkingorusingtobacco.Mixingandloadingofrestrictedmaterialsisonlydonebyalicensedprofessional.AllRoseburgemployeesorRoseburg’scontractorsinvolvedwithanyherbicideapplicationhaveacopyofRoseburg’sextensiveSpillPlanwhichcoversstep-by-stepactionsthatneedtobetakenintheeventofanaccidentalspillofanyherbicideorchemical.Roseburg’sspillplanisdesignedtominimizeandmitigatetheenvironmentalimpactsintheeventofanaccidentalspill.
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c)(Fillinonlyifyourepresentalargeormedium-scaleMU)
PleasedescribethetrainingprogramontheuseofthePPEandtheapplicationoftheHHPthatwillbeimplementedintherequestedderogationperiod.
Allpersonnelincludingapplicators,mixers/loaders,contractorsandRoseburgemployeeswhoentertreatedunitswithin30daysoftheexpirationoftherestrictedentryintervalonthepesticidelabelareallsafetytrainedonanannualbasisbylicensedprofessionalsintheuseandsafetyofpesticidesandintheproperPPEthatisrequiredwhenenteringtreatedareas.Anypersonapplying,mixing/loading,orenteringatreatedunitwithintherestrictedentryintervalmustwearalllabelrequiredPPEandhasbeentrainedonanannualbasisbyalicensedprofessional.
e)AdditionalInformation
RoseburgwillapplyPindarGTasminimallyaspossible;thiswillgenerallybeonceperrotation(50-80years).Roseburghasmadesignificanteffortstoutilizechemicalsthatresultintheleastamountofapplications,aswellasparticipateinresearchtotestalternatives,amounts,andtimingthatwillresultinbestefficacy.RoseburgwillneverapplyPindarGTtofoodcrops.
3. Program to identify, investigate, and test alternatives to the ‘highly hazardous’ pesticide
RoseburgResourcesCompanyisamemberandcontributes$5,000totheSierraCascadeIntensiveForestManagementResearchCo-op(SCIFMRC).ThemissionoftheSierraCascadeIntensiveResearchCo-OpistoconductappliedreforestationandyoungstandmanagementresearchfocusingonintensivesilvicultureofconiferspeciesandhowtheyinteractwiththeirbioticandabioticenvironmentsintheinteriorregionofNorthernCaliforniaandSouthwesternOregon.Primaryresearchobjectivesinclude;maximizationofconifersurvival,volume,growthandvaluewhilemeetingotherqualityobjectivesofsoundlandstewardship.
Roseburg,andtheSierraCascadeIntensiveForestManagementResearchCooperativehavesupportednumerousresearchendeavorsexploringalternativestoFSC’slistof‘highlyhazardous’herbicides.Researchtopicsincludecontinuingtheinvestigationofthelong-termeffectsofmanualtreatmentsvs.chemicaltreatmentsinyoungplantations,long-termcompetitionstudieslookingatvariouslevelsofherbaceouscontrol,newapplicationtechniquestominimizechemicaluse,andstocktypetrialswithandwithoutvegetationcontrol.Theseinvestigationshaveproducednovelinsightsregardingtheefficacyofnon-chemicalvegetationcontrolmeasures,whilesolidifyinganappreciationoftheeffectivenessofchemicalcontrolmeasures.Simplyput,manualormechanical
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treatmentswithoutchemicalusearefutileinMediterraneanclimateswherebusinessmodelsandthelegalobligationsmandatetheestablishmentofsuccessfulconiferplantations.
InadditiontotheSCIFMRC,RoseburgisasupportingmemberoftheForestStewardshipCouncilResearchGroupwherethegroup’sgoalhasbeentoevaluatenewchemistriesforforestrysitepreparationandherbaceouscontrol.Severalnewherbicideswereofinterestduetolowuserates,favorableenvironmentalprofiles,andprovenefficacyinapplicationsoutsideofforestry.WehaveevaluatednumerousalternativeproductsincludingPindarGT(penoxsulam+oxyfluorfen),EsplanadeF(indaziflam),MatrixSG(rimsulfuron),Milestone(aminopyralid),MAT28(aminocyclopyrochlor),andexperimentalcombinedratesofVelpar(hexazinone)/Milestone(aminopyralid).Attheconclusionofthetrials,Milestonedidnotprovideadequatevegetationcontrolbyitself,althoughbyaddingamuchlowerrateofVelpar(hexazinone)incombinationwithMilestone,somecontrolwasachieved.MAT28provedtobeunacceptableforuseinforestry,mainlyduetodecreasedcontrolinsubsequentgrowingseasons,aswellaspoorconifertolerance.TrialssuggestthatMatrixSG,commonlyusedinbare-groundapplications,hasacceptableconifertolerance,butpoorvegetationcontrolinaforestsetting.TrialshaveshownthatEsplanadeFhasacceptableconifertolerance,butpoorvegetationcontrolinforestryapplications.EsplanadeFcurrentlyhasafederalregistrationbutdoesnothaveaCaliforniaregistration.PindarGTprovedtohaveincrediblepre-emergentcontrolandsuperiorconifertolerancecomparedtoanyofthealternativetreatmentswhilemaintaininggreatstabilityintheenvironment.TheadditionofPindarGTwillbeagreatassetforvegetationmanagement.
Basedonthedatapresentedwithinthesetrials,itappearsthatPindarGThasproventobeasuitablealternativetotheoperationalstandardofhexazinonethatprovidesadequatevegetationcontrolwhileofferingmanyadditionalbenefits.PindarGThasasuperiorconifertoleranceandismuchmoreenvironmentallystablethanhexazinone(Table1).
CurrentlytheSCIFMRCisconductingaRodeo(Glyphosate)spraytrialover-the-topofdormantseedlings.Thistrialwasestablishedinthespringof2015andwillhavefinalevaluationsinthefallof2016.Althoughthisistheonlytrialcurrentlyongoing,theSCIFMRCgroupmeetsatleastonceayearwherenewtrialsareproposed.
TheFSCResearchGrouphasseveraltrials,primarilytestingdifferentratesanddifferentmixturesoftheabovementionedherbicides.
RoseburgResourcesCompanycontinuestoexplorealloptionsforvegetationmanagementtoestablishplantedforest.WhileRoseburghaseffectivelyreducedthenumberofstandentriesandamountofherbicideapplied,thecompleteeliminationofherbicideintheIPMisnotaviablevegetationmanagementoption.Asaresult,Roseburgcontinuestoutilizethe
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safestandmosteffectivevegetationmanagementoptions,whileconsistentlystrivingtokeepherbicideusetoaminimum.
SeeAppendix4foratableofPindarGTalternatives.
4. Stakeholder Consultation
AlistofStakeholderscontactedisattachedasAppendix5.
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Powers,R.F.andG.T.Ferrell.1996.The“GardenofEden”StudyRevisited.FindingsatEightYears.InProceedingsofthe17thAnnualForestVegetationManagementConference,Redding,Ca.pp.8-31.
South,DavidB.,J.B.ZwolinskiandH.Kotze.2001.EarlyGrowthResponsesfromWeedControlandPlantingLargerStockofPinusRadiataareGreaterThanThatObtainedfromMechanicalSoilCultivation.NewForests.22:199-211.
Weaver,S.E.1992.AlternativestoHerbicides:ComparisonofTwoMechanicalMethodsforControlofCompetingVegetationinTwoJeffreyPinePlantations.Proc.13thAnn.ForestVegetationManagementConference.Eureka,Ca.pp104-108.
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Appendix1.ListofweedspeciescontrolledbyPindarGT.WeedsControlled(ArizonaandCaliforniaOnly)Preemergence PostemergentCommonName ScientificName CommonName ScientificNamebarnyardgrass2 Echinochloacrus-galli barnyardgrass2 Echinochloacrus-gallibluegrass,annual Poaannua bluegrass,annual Poaannuaburclover,California Medicagopolymorpha burclover,California Medicagopolymorphacarpetweed Mollugoverticillata carpetweed Mollugoverticillata
celery,wildCyclospermumleptophyllum celery,wild
Cyclospermumleptophyllum
cheeseweed(mallow) Malvaparviflora cheeseweed(mallow) Malvaparviflorachickweed,common Stellariamedia chickweed,common Stellariamediaclover Trifoliumsp. clover Trifoliumsp.crabgrass,large2 Digitariasanguinalis crabgrass,large2 Digitariasanguinaliscudweed Gnaphaliumsp. cudweed Gnaphaliumsp.dandelion Taraxacumofficinale dandelion Taraxacumofficinaledock,curly2 Rumescrispus dock,curly2 Rumescrispusevening-primrose,
cutleaf Oenotheralaciniataevening-primrose,cutleaf Oenotheralaciniata
fiddleneck,coast Amsinckiamenziesii fiddleneck,coast Amsinckiamenziesiifilaree,broadleaf1 Erodiumbotrys filaree,broadleaf1 Erodiumbotrysfilaree,redstem1 Erodiumcicutarium filaree,redstem1 Erodiumcicutariumfilaree,whitestem1 Erodiummoshatum filaree,whitestem1 Erodiummoshatumfleabane,hairy Conyzabonariensis fleabane,hairy Conyzabonariensisgroundcherry2 Physalissp. groundcherry2 Physalissp.groundsel,common Seneciovulgaris groundsel,common Seneciovulgarishenbit Lamiumamplexicaule henbit Lamiumamplexicauleknotweed,prostrate2 Polygonumaviculare knotweed,prostrate2 Polygonumavicularelambsquarters,
common Chenopodiumalbumlambsquarters,common Chenopodiumalbum
lettuce,prickly Lactucaserriola lettuce,prickly Lactucaserriolaloosestrife,hyssop Lythrumhyssopifolia loosestrife,hyssop Lythrumhyssopifoliamarestail/horseweed Conyzacanadensis marestail/horseweed Conyzacanadensisminer'slettuce2 Claytoniaperfoliata miner'slettuce2 Claytoniaperfoliatamustard,annual Brassicasp. mustard,annual Brassicasp.nettle,burning Urticaurens nettle,burning Urticaurensnightshade,black Solanumnigrum nightshade,black Solanumnigrumoat,wild Avenafatua oat,wild Avenafatuapepperweed,
perennial2 Lepidiumlatifoliumpepperweed,perennial2 Lepidiumlatifolium
pepperweed,Virginia Lepidiumvirginicum pepperweed,Virginia Lepidiumvirginicum
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Preemergence PostemergentCommonName ScientificName CommonName ScientificNamepigweed,redroot Amaranthusretroflexus pigweed,redroot Amaranthusretroflexuspineapple-weed Matricariadiscoidea pineapple-weed Matricariadiscoideapuncturevine2 Tribulusterrestris puncturevine2 Tribulusterrestrispurslane,common Portulacaoleracea purslane,common Portulacaoleracearadish,wild Raphanusraphanistrum radish,wild Raphanusraphanistrumredmaids Calandriniaciliata redmaids Calandriniaciliatarocket,London Sisymbriumirio rocket,London Sisymbriumirioryegrass Loliumsp. ryegrass Loliumsp.shepherd's-purse Capsellabursa-pastoris shepherd's-purse Capsellabursa-pastorissmartweed,
PennsylvaniaPolygonumpensylvanicum
smartweed,Pennsylvania
Polygonumpensylvanicum
sowthistle,annual Sonchusoleraceus sowthistle,annual Sonchusoleraceussowthistle,perennial2 Sonchusarvensis sowthistle,perennial2 Sonchusarvensisspurge,prostrate2 Chamaesycehumistrata spurge,prostrate2 Chamaesycehumistrataspurge,spotted2 Chamaesycemaculata spurge,spotted2 Chamaesycemaculatastorksbill,long Erodiumbotrys storksbill,long Erodiumbotrysthistle,Russian Salsolatragus thistle,Russian Salsolatragus
willowherb,panicleEpilobiumbrachycarpum willowherb,panicle
Epilobiumbrachycarpum
witchgrass Panicumcapillare witchgrass Panicumcapillare1PindarGTatthe3pintratewillprovidecontroluptothe4-inchstage.Applicationsafterthe4-inchstagemayresultin
partialcontrol2Suppression
17
Appendix2.Roseburg’sCaliforniaOwnershipMap
18
Appendix3.Cost/BenefitAnalysisExpertReview.
19
REVIEWOFROSEBURGRESOURCECOMPANIESCOST/BENEFITANALYSISOFPINDARGTCOMPAREDTOALTERNATIVECHEMICALANDNON-CHEMICAL
METHODS
SEPTEMBER21,2015
BY:EDFREDRICKSON
INDEPENDANTPESTICIDEDEVELOPMENTSPECIALIST
PRESIDENT-THUNDERROADRESOURCESCO
21169FALLINGLEAFRD
REDDING,CA96003
530-949-4734CELL
530-549-3843OFF
20
INTRODUCTION
Thisdocumentisanindependentreviewofthecost/benefitanalysisconductedbyRoseburgResourceCompany(RRC)comparingPindarGTtoalternativechemicalandnon-chemicalvegetationcontrolmethods.
PindarGTisanewherbicidetoforestry,buthasbeenregisteredforuseintreecropsandnon-cropforseveralyears.Itcontainstwoactiveingredients,oxyfluorfenat3.93andpenoxsulamat0.083poundsactiveingredientpergallon.OxyfluorfenisinthediphenyletherfamilyofherbicidesanditsmodeofactionistoinhibittheProtoxenzymeneededforchlorophyllandhemebiosynthesis,whereaspenoxsulamisinthetriazolopyrimidinefamilyandinhibitstheALSenzymeneededforbiosynthesisofthreeessentialaminoacidsinplantsvaline,leucineandisoleucine.
Oxyfluorfenistightlyboundtosoilparticlesandispracticallynon-mobileinmostsoilconditions.Italsohasashorthalflifeof30to40daysinsoil.Penoxsulamismoremobilebutrapidlybrokendownwithhalflivesrangingfrom20to58daysdependingonsoiltypeandclimate.Bothoxyfluorfenandpenoxsulamhavelowtoxicitiestomammals,birdsandbees,andpenoxsulamhasverylowtoxicitytofish.Oxyfluorfenisrelativelytoxictofishbutwithitslowsoilmobility,anyrisksareeasilymitigated.
ExtensivetestinginCalifornia,OregonandIdahohasshownPindarGTtohaveunsurpassedconifertoleranceonspeciesthataregenerallyintoleranttohexazinonesuchasDouglas-fir,whitefir,redfir,sugarpine,incensecedarandwesternlarch.PonderosapinealsohasveryhighmarginsofsafetyregardingPindarGT.TolerancewithPindarGTissohighthatitmaybeappliedpreorpostplantaswellaspreorpostconiferbudbreakwithoutriskofdamage.Applicationsmayevenincludetheadditionofasurfactantwithoutanynegativeeffect.
VeryeffectivevegetationcontrolhasbeenshowninthespringorfallwithPindarGT.Itisprimarilyapre-emergentherbicidewhenusedalone,inhibitingbothherbaceousvegetationandwoodybrushgermination.Post-emergentactivityissignificantlyenhancedwiththeadditionofanadjuvantorlowratesofotherherbicides.
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COST/BENEFITANALYSISREVIEW
RRCcomparedthecostandeffectivenessofPindarGTtootherchemicalandnon-chemicalmethodsofvegetationcontrol,includingano-actionscenario.Regardingtheircomparisonstootherchemicalapplications,RRCchosetocomparePindarGTtoapplicationsinvolvingeitherhexazinoneorglyphosate.ItshouldbenotedthatsulfometuronmethylandatrazinearealsosoilactiveproductsthathavesimilarrolesinforestrybutonRRC'sownershiparenotusedduetoconifertoleranceissueswithsulfometuronmethylandwaterqualityconcernswithatrazine.Therefore,theircomparisontoonlyhexazinoneandglyphosateisadequate.
RegardingRRC'scomparisontohexazinoneandglyphosate,PindarGThasmanyadvantagesoverbothherbicides.Themainonebeingconifertolerance.Douglas-fir,whitefirandincensecedararemoderatelytoseverelyintolerantofhexazinone,evenatlowrates.Glyphosateapplicationsarestrictlylimitedtogrounddirectedsprayapplicationsbecausenoconiferspeciesistoleranttoglyphosateinthespringwhennewlyplantedreleaseapplicationsoccur.NosoilorfoliaractiveherbicidehasshowntheconifertoleranceevidentwithPindarGTtodate.
PindarGTalsohasseveralveryattractiveenvironmentalattributescomparedtohexazinoneapplications.Itisrelativelynon-mobileinthesoilandthereforewillnotleachthroughthesoilprofile.Italsohasaveryshorthalflife.Anyriskstoaquaticorganismsareeasilymitigatedthroughtheuseofbuffersbecauseofthesetwoattributes.Comparedtotypicalhexazinoneorglyphosateapplications,fewerpoundsofactiveingredientareappliedperacrewithPindarGTcomparedtotypicalapplicationratesofeitherhexazinoneorglyphosate.
RRC'scomparisontoglyphosateisalsocorrectinthatthedurationofcontrolwithglyphosateisshortduetonosoilresidualactivity,thatrepeatapplicationsarenecessarytoachievethesamelevelofcontrolasoneapplicationofPindarGT.Controlofcompetingvegetationearlyintheseasonwithglyphosateiscriticalfornewlyplantedseedlingsurvival,soapplicationswithglyphosatemustbedoneearlytocapturetheavailablesoilmoisturefortheseedlings.However,byearlysummer,thesummerannualsandwoodybrushseedlingsgerminateandthesitesarequicklyre-invadedwithvegetationandseedlingsarealmostimmediatelyunderstressagain.SurvivalinMediterraneanclimateshasshowntobeseverelyimpactedwithaslittleas25percentvegetativecover(Oliver,1984).Glyphosatetreatmentsaregenerallynotveryeffectiveandcostly.
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CostisanothercomparisonthatRRCusestojustifytheuseofPindarGT.Hexazinoneisinherentlyanexpensivechemicaltoproduceandthepriceperpoundreflectsthat.ThreepintsperacreofPindarGTgenerallyrunsbetweenthe$60to$65peracrethatRRCstatesintheiranalysisdependingonwhatpricegetsnegotiatedwiththedistributor.Generaluseratesofhexazinonerangebetweenthreetofourpoundsproductperacreandingeneralcostsaround$27perpoundforarangeof$81to$108peracre.Laborrateswouldbethesameastheystatesincetheyaregettingappliedinthesamebroadcastmanner.Thehighcostoftheglyphosateapplicationsareduetotheapplicationmethodhavingtobeagrounddirectedspraytoprotectthetreesfromanycontactwiththespraymix.RRCstatestheapplicationcosttobe$90peracre.Inrealitythisisprobablyonthelowendaslaborcostsmaygoashighas$150peracredependingontheamountofvegetationpresent.RRCalsocorrectlystatesthatmultipleapplicationsofthistypewillbenecessarytoachievethedesiredlevelofvegetationcontrolforsuccessfulestablishment.
InMediterraneanandotherclimatesmechanicalorhandtreatmentsalonearenotaviablemethodofvegetationcontrol(Newton&Dost1984,Flint1985,Knowe1992,McDonald&Fiddler1992,Fiddler&McDonald1997).Costsareextremelyhigh,butmoreimportantlythedurationofcontrolisincrediblyshort.Mechanicalandhandtreatmentsaremosteffectivelyusedinanintegratedprogramthatincludesherbicideuse.NewtonandDost,1984,alsoshowedasignificantlygreaterinjuryrisktoworkerswitheithermechanicalormanualremovalmethods.ThereareothermethodsofmanualcontrolRRCdidnotfocusonsuchasmulchmats,however,theirinstallationandmaintenancecosts(sometimesexceeding$2000peracre)alongwithmixedresultsdonotmakethisaviableoptioneither(McDonald&Fiddler1992,McDonaldetal.1994).Overall,RRCwascorrectintheirefficacyandcostassumptionsregardingmechanicalandhandtreatmentstocontrolvegetation.
Othermethodsofanon-chemicalnaturecouldalsohavebeenaddressedsuchasthenon-syntheticandessentialoilproductstocontrolvegetationsuchasvinegar,cloveoil,cinnamonoil,cornglutenmeal,etc.However,inalmostallcasesthesemethodshaveprovenineffective(Chaseetal.2004,Curranetal.2005,Moran&Greenberg2006,Chandran2009,Webber&James2009).Herbicidalsymptomsusingthesemethodsareshortlivedandplantrecoveryoccursquickly.Withsomeoftheproductssuchasthevinegartreatments,theactiveingredientisaceticacid,whichistoxicinitselfandasevereeyeirritant.Cloveoilstendedtobethemosteffectivetreatments,butonlyonverysmallnewlygerminatedherbaceousbroadleavedseedlings,andtheratesrequiredtoeffectivelycontroltheseedlingsrangedincostfrom$200to$1000peracreforthecloveoilalone.
Biologicalcontrolssuchasinsectsandpathogeneticfungiandculturalmethodscouldhavebeenmentionedbutdonotprovideasuitablealternativebythemselves,butmayhaveafitaspartofanintegratedprogram.Biologicalcontrolstendtobetootargetspecificandpopulationlevelsareusuallynotadequatetoachieveanydesiredlevelofcontrol(Newton&Dost1984).
23
RRCiscorrectintheirassumptionsforano-actionalternative.Survivalandgrowthofconiferseedlingswouldbesonegativelyaffectedthatsiteswouldbedominatedbywoodybrushandhardwoodswithlittletonoconiferstocking(Powers&Reynolds1999).Thiswouldalsoputtheirownershipundersignificantriskfromfireforincreasedfuelloading.Theyalsocouldnotadequatelymeetstatemandatedstockingrequirementsunderadonothingapproach.
CONCLUSION
Overall,IfindRRC'scost/benefitanalysistobecorrectandadequatetojustifyaderogationfortheuseofPindarGTonRRC'sownership.Thealternativestheydidfocusonwerethemostlogicalchoicestocomparetoandtheircostandefficacyassumptionswerecorrect.PindarGTuseisjustifiedduetoloweruserates,increasedconifertolerance,lowsoilmobility,rapidbreakdownandagreatercosteffectiveness.
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25
Appendix5.
RoseburgResourceCompany
LocalStakeholdersforChemicalDerogation
CaliforniaDept.ofFishandWildlife CurtBabcock,601LocustSt.Redding,CA96001.530-225-2740,[email protected],CARegionalWaterQualityControlBoard AngelaWilson,415KnollcrestDr.,Suite100Redding,CA96002.530-224-4856,
USFishandWildlifeServiceBrianWoodbridge,1829S.OregonSt.,Yreka,CA96097.530-842-4471,[email protected]
CaliforniaTrout
DrewBraugh,Mt.Shasta/KlamathDirector,POBox650,MountShasta,CA96067530-926-3755,[email protected]
ShastaNation POBox1054,Yreka,CA96097ShastaNation HowardWynant,POBox34,Macdoal,CA,96058AjumawiBand LetaNalton,CulturalResourcesRep.,POBox1253,Burney,CA96073PitRiverTribeEnvironmentalOffice SharonElmore,37014MainStreet,Burney,CA96073RockyMt.ElkFoundation MikeFord,SeniorRegionalDirector,Yreka,CA.530-842-2021,[email protected](KARE) POBox1234,Yreka,CA96097,[email protected] POBox784,Dunsmuir,CA96025.530-235-2012,[email protected] SierraPacificIndustries HerbBaldwin,POBox496028,Redding,CA96049.530-378-8000,[email protected]&Associates ScottCarnegie,POBox990898,ReddingCA96099.530-243-2783,[email protected]
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FruitGrowersSupplyCompanyTerrySalvestro,1216FruitGrowersRoad,Hilt,CA96044.530-475-3453,[email protected]
CampbellTimberland PaulChapman,[email protected] JayFrancis,POBox796,Chester,CA96020.530-258-4401,[email protected]
HancockForestManagement JimWolter,POBox687,McCloud,CA96057530-964-2979,[email protected]. DustinLindler,POBox227,Weed,CA96094.530-938-3785,[email protected] PatrickGriffin,525SouthFoothillDr.,Yreka,CA96097.530-841-4025ShastaCountyAgCommissioner
PaulKjos,3179BechelliLane,Suite210,Redding,CA96002.530-224-4949,[email protected]