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    Activeingredient:Thechemicalcomponentofaherbicidethatactually

    killsordebilitatestheplant.

    Axil:Theanglebetweentheleafstalkofaplantand

    thestem.

    BASIS:Aqualificationoftechnicalcompetenceforpeople

    whouse,store,selloradviseontheuseof

    pesticides.BASISisanorganisationcommittedto

    makingsurepeopleinvolvedinhandlingandusingpesticidesarecompetent.BASISmaintainaregister

    oftrainedadvisors,whoneedtodemonstrate

    anannualprogrammeofcontinualprofessional

    developmenttomaintaintheirqualification.Details

    ontheBASISProfessionalRegisterareavailable

    from34,StJohnStreet,Ashbourne,DerbyshireDE6

    1GH.Tel:01335343945.

    Brownfield:Asitethathasbeenpreviouslyusedinamanner

    thatrequiresremediationbeforeitisusedagain.Suchsitesareoftenpost-industrialsitesorderelict

    buildingsandoftenhavecontaminatedlandand

    otherwasteissuesassociatedwiththem.

    Bund:Shallowpileofsoil,spreadouttoachieveadepthno

    greaterthan1m,preferably0.5m.Bundscaneither

    beonthesurface,oroccupyvoidstocreatealevel

    surface.BundsshouldhavethebulkoftheJapanese

    knotweedrhizomeconcentratedonthesurface,to

    facilitateregrowthsuitableforherbicidetreatment.

    Canes:Tall,hollow,bamboo-likestems.

    Clerkofworks:PersonresponsibleformanagingalltheJapanese

    knotweedonsite.Theclerkofworksoverseesthe

    Japaneseknotweedmanagementplanandensures

    allstaffonsiteareawareoftheirrolewithregards

    Japaneseknotweedmanagement.

    ControlofPesticidesRegulations

    (CoPR)1986:CoPR1986requireanypersonwhousesapesticidetotakeallreasonableprecautionstoprotectthe

    healthofhumanbeings,creaturesandplants,

    safeguardtheenvironmentandinparticularavoid

    thepollutionofwater.Forapplicationofpesticides

    inornearwaterapprovalfromtheEnvironment

    Agencyshouldbesoughtbeforeuse.

    Crown:Thevisiblepartoftherhizomefromwhichcanes

    grow.Crownscanproducemanynewcanesand,becauseoftheirsize,canberesistanttoburningor

    dryingout.

    Dormant:Thestateinwhichanorganismisstillalive,but

    displayslittleevidenceoflife.

    Dutyofcare:Section34oftheEnvironmentalProtectionAct

    1990(EPA90)imposesadutyofcareonpersonsconcernedwithcontrolledwaste.Thedutyapplies

    toanypersonwhoproduces,imports,carries,

    keeps,treatsordisposesofcontrolledwaste,or

    asabrokerhascontrolofsuchwastes.Breaching

    thedutyofcareisanoffence,withapenaltyofan

    unlimitedfineifconvictedonindictment.

    EnvironmentalProtection

    Act1990(EPA1990):EPA1990containsanumberoflegalprovisions

    concerningcontrolledwaste,whicharesetoutinPartII.AnyJapaneseknotweedcontaminatedsoil

    orplantmaterialthatyoudiscard,intendtodiscard

    orarerequiredtodiscardislikelytobeclassifiedas

    controlledwaste.Themostrelevantprovisionsarein

    sections33and34.

    Fly-tipping:Illegaldisposalofwasteintotheenvironment.

    Glossary

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    Formulation:Aparticularherbicidetradedunderaspecificname.

    Differentformulationsofherbicidemaysharethe

    sameactiveingredient,butaredesignedforuse

    indifferentsituations.Forinstance,onlycertain

    formulationsofglyphosateareapprovedforusein

    ornearwater.

    Greenbelt:Areaofundevelopedlandinproximitytoa

    communitythathasbeenpreservedtoconservethe

    aestheticbeautyofthelocation.Theseareasare

    referredtoasgreenwedgesinWales.

    HazardousWasteRegulations2005

    (HWR2005):HWR2005containprovisionsaboutthehandlingandmovementofhazardouswaste.Consignment

    notesmustbecompletedwhenanyhazardous

    wasteistransferred,whichincludedetailsabout

    thehazardouspropertiesandanyspecialhandling

    requirements.Ifaconsignmentnoteiscompleted,

    awastetransfernoteisnotnecessary.Material

    containingknotweedthathasbeentreatedwith

    herbicide,maybeclassifiedashazardouswaste.

    Hazardouswaste: HazardousWastewastewhichbyvirtueofitscomposition,carriestheriskofdeath,injuryor

    impairmentofhealth,tohumansoranimals,the

    pollutionofwaters,orcouldhaveanunacceptable

    environmentalimpactifimproperlyhandled,treated

    ordisposedof,ascontrolledintheECDirectives

    onHazardousWasteanddefinedbySpecialWaste

    Regulations1996(asamended)(schedule2).

    Heave:Physicaldisruptionofahardsurfacecausedbyan

    upwardstress.

    Hybrid:Aplantoranimalthatresultsfromreproductionby

    twodifferentspecies.

    Membrane:Inthiscode,membranedescribesarelativelylow

    specificationprotectivelayerusedforcontaining

    Japaneseknotweedwhenitisbeingtransported

    (sections5.1,6.1,6.2,7.2).Comparewithrootbarriermembrane,below.

    Perennial:Aplantthatcontinuesitsgrowthfromyeartoyear.

    Persistentherbicide:Aherbicidethatcontainsanactiveingredient

    thatwillnotbeswiftlydegradedafterithasbeenapplied.Thiscansometimeslimitthemannerin

    whichtreatedsoilcanbereusedordisposedof.

    Rhizome:Undergroundstem.EnablesJapaneseknotweedto

    surviveover-winter,whenthecanesdieback.Small

    sectionsofrhizome,aslittleas0.7gcanregrowinto

    anewplant.Rhizomatous:Oforpertainingtoarhizome.

    Rootbarriermembrane:Highspecificationmembraneusedforhighly

    stressedshort-termprotection,suchashaulage

    routes(section2.2,7.1and7.3),orcontaining

    Japaneseknotweedinthelongterm(sections4,5

    and8.5).Rootbarriermembranesmustbemadeofa

    materialthatisfitforpurpose.Itshouldbemadeof

    amaterialthatcanbe:

    a) usedwithoutdamage;

    b) providedinlargesizes,tominimisetheneed

    forseals;

    c) sealedsecurely;

    d) remainintactforatleast50years(guaranteed

    bythemanufacturer);

    e) resistUVdamageifusedwhereitisexposed

    tosunlight;

    f) buriedwithoutpollutinggroundwater

    fromchemicalsleachedfromit.Comparewith membrane,above.

    Sett:Thesystemoftunnelsandchambersusedby

    badgersandprotectedbylaw.

    Tines:Longpointedteethattachedtoadiggerbucketto

    rakeoutrhizome.

    Viable:Capableofgrowingintoanewplant.

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    Wasteexemption:Whenthedisposalofwasteisdeemednottopresent

    arisktopublichealthortheenvironment.

    WasteManagementLicensing

    Regulations(WMLR)1994:WMLR1994describewasterelevantobjectives

    inParagraph4ofSchedule4.Theseobjectives

    requirethatwasteisrecoveredordisposedof

    withoutendangeringhumanhealthandwithout

    usingprocessesormethodswhichcouldharmthe

    environmentandinparticularwithoutrisktowater,

    air,soil,plantsoranimals;orcausingnuisance

    throughnoiseorodours;oradverselyaffectingthe

    countrysideorplacesofspecialinterest

    Wasterelevantobjectives: SeeWasteManagementLicensingRegulations

    (WMLR)1994,above.

    WildlifeandCountryside

    Act1981(WCA1981):Section14(2)statesthatifanypersonplantsor

    otherwisecausestogrowinthewildanyplantwhich

    isincludedinPartIIofSchedule9,heshallbeguilty

    ofanoffence.Japaneseknotweedisoneofthe

    plantslistedintheSchedule.

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    AguidetoJapaneseknotweedrhizomeidentificationand

    excavation

    Finger-nailsizedsectionsofrhizome

    0.7ginweightcanregenerateintoanewknotweedplant.

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    AguidetoJapaneseknotweedrhizomeidentificationandexcavation

    i) What is Japanese knotweed?JapaneseknotweedFallopia japonicawasintroduced

    intotheUKduringthemid-nineteenthcenturyasanornamentalplant.Ithassincebecomeoneofthe

    mostproblematicinvasiveweedsinEurope(see

    Section1ofCode)

    Japaneseknotweedisaperennialweed,producing

    tallcanes,upto3m(10feet)inheightduringthe

    summer.Thecaneshavecharacteristicpurpleflecks,

    andproducebranchesfromnodesalongitslength.

    Thesebranchessupportshovel-shapedleaves

    andclustersofwhiteflowersinautumn.Thecanes

    dieoffinwinter,turningbrownandsheddingtheir

    leaves.Thisproducesdensemulchthatprecludesthegrowthofnativeplants.

    ii) What is Japanese knotweed rhizome?Japaneseknotweedcanesgrowfromdensecrowns

    thatalsoproduceextensiveundergroundstems,

    calledrhizomes.Theserhizomesalsoproducefine,

    white,hair-likeroots.Itishardtostatewithcertainty

    thelikelyextentofrhizomespreadfromtheparent

    plant.Researchhasshownthatrhizomecangrow

    adistanceofatleast7m(23feet)andachieveadepthofatleast2m(6feet)fromtheparentcrown.

    However,theactualextentoftherhizomecanvary

    considerablydependingonthesoiltypeandthe

    historyofthesite.Manyknotweedinfestationsstart

    lifeasaresultoffly-tippedwaste,andrepeated

    applicationsofwasteontopoftheinitialinfestation

    canresultinadeepmatrixofrhizome.

    Environment AgencyManagingJapaneseknotweedondevelopmentsites39

    Thisguideshouldbeusedinconjunctionwiththe

    EnvironmentAgencycodeofpractice,managingJapanese

    knotweedondevelopmentsites.Ithasbeenproducedas

    aseparateguidetofacilitateuseduringexcavations.

    AppendixI

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    iii) Why is it important to be able to identifyJapanese knotweed rhizome?Whilstknotweedcanregeneratefromsmall

    sectionsofcane,mostknotweedintheUKarises

    fromrhizomeandcrownmaterial.Finger-nailsized

    sectionsofrhizome0.7ginweightcanregenerate

    intoanewknotweedplant.Itappearsthattheregenerativepotentialofrhizomevaries.Thick,old

    woodytissueappearstobelessabletoproduce

    newgrowththancrownmaterialorthinnersucculent

    rhizome.Thishasimplicationsforthoseexcavating

    knotweedrhizomes,wherethereisariskofthin

    terminalrhizomefromtheedgeofthecutbeing

    overlooked,whichwouldhaveahigh

    regenerativepotential.

    Thereareoftensituationsinwhichitisnecessary

    tobeabletoidentifyrhizomewithoutthebenefit

    ofintactknotweedcanesforassistance.Ifa

    siteisundisturbeditisfairlyeasytorecognise

    characteristicsummergrowth,orthedeadwinter

    canes.Ifthesitehasalreadybeenscraped,itis

    necessarytoinspectthewastematerialforevidence

    ofknotweed;deadcanes,leavesandrhizome,to

    establishiftheweedispresentonsite.Knowledgeof

    rhizomeidentificationisthenrequiredtoidentifythe

    locationandextentoftheinfestation.

    Thecostofknotweedmanagementcanbe

    significantlyreducedifknotweedandnon-knotweedwastestreamscanbekeptseparate.Ifpoorinitial

    managementofasitehasalreadyprecludedthis

    option,thisshouldbeofgreatconcerntoany

    subsequentdeveloper.

    Wastehauliersalsoneedtotakecaretoinspect

    wastematerialpriortoacceptingit(SeeSection6.2

    ofCode).Soilcontainingviableknotweedmaterial

    isnotsuitablefordisposalunderanexemptionfrom

    Section34oftheEnvironmentalProtectionAct1990.

    Section34imposesadutyofcareonapersonwho

    produces,imports,carries,keeps,treatsordisposes

    ofcontrolledwaste,oractsasabrokerfor

    suchwastes.

    iv) How do I recognise rhizome?Anidentificationchartforknotweedrhizome,and

    acomparisonwithothercommonlyencountered

    roots,isprovidedwithinAppendixII.Theformer

    WelshDevelopmentAgency,nowpartoftheWelsh

    AssemblyGovernment,hasproducedatabular

    guidetotheidentificationofknotweedrhizomethatisreproducedinAppendixIIIwiththeir

    kindpermission.

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    Inadditiontotherhizomedescribedwithinthe

    identificationchart,verynewrhizomegrowth,

    delicateandwhiteinappearance,canbefoundduring

    thegrowingseason.

    v) How do I remove rhizome?Putsimply,removetherhizomewithextremecare.Itisimportanttoreadthecodeofpracticebefore

    startingexcavation.Themajorityofknotweed

    rhizomeisconfinedtothetop0.5mofsoil.Remove

    thesoilbyfirstscrapingoffthecrownsandsurface

    rhizomeandputtingtooneside.Crownsand

    rhizomecanbedriedandburned(seeSection5.2

    ofCode)priortotreatmentwiththeremainingsoil.

    Crownmaterialinparticularisresistanttoburning;

    thereforeitisimportanttoregardthismaterialasstill

    potentiallyinfectious.

    Thenext0.5-1mofsoilcanthenberemovedand

    putaside,andthentheremainingsoiltoadepthof

    approximately3mcanbeexcavated.Thismaterial

    shouldformthebaseofabund(SeeSection5.5

    ofCode),orthetoplayerofburiedmaterial(See

    Sections5.4and4.1ofCode).Thisprocessof

    excavationcanbeproportionedtoanydepthof

    excavation,ratherthanadoptingthe3m

    generaliseddepth.

    Guidanceonthecontainmentandmovementofknotweed-infestedsoilisprovidedwithinSections2,

    6and7oftheCodeofPractice.

    Carefuluseoftheinformationwithinthisguideshould

    enableoperatorstoeffectivelyinspecttheedgeof

    theirexcavationforremainingrhizome.Dependingon

    thehistoryofthesite,thedepthtowhichknotweed

    rhizomeextendscanvarybetween0.5m10m.The

    historyoftheinfestation,soiltypeandthewater

    tablecanallhaveaprofoundimpactontheextentof

    rhizome.Situationsinwhichrhizomeisgreaterthan

    3mtendstobeassociatedwithsituationsinwhich

    additionalwastehasbeenregularlydumpedonan

    establishedknotweedstand,orwind-blownsandhas

    createdadunesystem.

    Carefulexcavationofrhizomehasthepotentialto

    significantlyreducethevolumeofwasteremoved

    insteadofsimplyexcavatinga7mx3mvolumeofsoil.

    Italsoensureseffectiveremovalinsituationswherea

    7mx3mexcavationisanunder-estimate.Inallcases

    theprecautionaryapproachmustbeadoptedrather

    thanriskleavingrhizomebehind.

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    Notallrhizomeregeneratesinthesamemannerand

    thefactorsthatdeterminerhizomeregeneration

    arethesubjectofresearch.Itappearsthatolder

    rhizomebecomeswoody,andtendstobeutilised

    bytheplantforfoodstorage,whereasthefresh

    youngrhizomeismorecarrot-likeandmuchmore

    infectious.Therefore,thesmallpiecesattheextremeedgeoftherhizomeringarepotentiallythemost

    infectious,andthereforerequirethegreatestofcare.

    Itisgoodpracticetoexcavateanother0.5maround

    theperimeterofthecutafterallrhizomehasbeen

    apparentlyremovedasafurtherprecaution.

    Rhizomeisanundergroundstem,ratherthanaroot,

    andwilltendtospreadlaterally.Therhizomeat

    theperipheryofthematrixwilltendtobeshallow,

    thereforetheexcavationusuallydescribesasaucer-

    shapedprofile.

    Havingexcavatedtherhizomeitisessentialthat

    wastestreamsarekeptseparateandthatrhizome

    isnotallowedtocontaminatespoilthathasbeen

    removedfromareasfreefromrhizome.

    Remember:

    Donotexcavaterhizomeunlessyouhaveto,especiallyifyoudonothavethe

    capacitytotreatthematerialonsite.

    A0.7gpieceofrhizomeisapproximatelythesize

    ofyourlittlefingernail,andthismaybecapableof

    growingintoanewplant.

    Thematrixoftherhizomewillvaryinsizeand

    extent,dependingonthenatureandhistoryofthe

    site.Carefuluseofthisguidewillminimisethewaste

    youproduceandsignificantlyreduceyourcosts.

    Rhizomemayremaindormantforatleast20years.

    Dormantrhizomemayregrowifitisdisturbed.

    Lackofregrowthisnotevidenceoferadication.

    Avoidspreadingrhizomebyfollowingtheguidance

    givenwithintheknotweedcodeofpractice.

    Ifyouspreadrhizomeintotheenvironmentyou

    maybeliabletoprosecutionundertheWildlife&

    CountrysideAct1981.

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    Plants commonly found on development sites

    External appearance of root or rhizome

    Snap Test

    Scrape Test

    Root / rhizome identification chart - Japanese knotweed

    Japanese knotweed Fallopia japonica

    (and other Asiatic invasive knotweeds).Japaneseknotweediscommonlyencounteredon

    brownfieldsites,wheresoildisturbanceandfly-tipping

    arecommon.Closeproximitytorivers,roadsandrailways

    mayalsoprovideasourceofinvasion.

    Environment AgencyManagingJapaneseknotweedondevelopmentsites43

    Colour:Darkbrown,lighterwhendried.

    Texture:Smoothskin,becomingroughwhendesiccated.

    Features:oftenforminglongknottylengths.Maysupportsmallred

    buds,particularlyoncrowns(baseofstem).Finehair-like

    rootscommon,particularlyonthinnersections.

    Snapability:Easy.Verycarrot-likeinstructureandcolourwhenfresh.

    Morewoodywhendry.Oldermaterial,particularlynear

    thecrown,canbeverywoody.Colourcanvaryfromdeep

    redtopaleyellow,withorangethemostcommon.Younger

    freshmaterialusuallyhasadifferentcolouredcore.

    Outer layer:Thinskin,easilyremovedwhenfresh.

    Inner layer:Palethreadsoftenrunthroughdarkerfibrousflesh,

    particularlyinlargerrhizome.Oftenvariationsincolour

    throughrhizomewhensplitlengthways.Crownmaterial

    isoftencakedwithsoilandcanbehardtorecognise.Cleaningshouldrevealredbudsandcharacteristicflesh.

    AppendixII

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    Root / Rhizome identification chart - other common plants

    Plants commonly found on development sites

    External appearance of root or rhizome

    Snap Test

    Scrape Test

    Dock:

    Commonondisturbedgroundandintopsoil.AgriculturalweedandcoveredbytheWeedsAct1959.Closestnative

    planttoknotweed,sosimilarrootappearance.

    Colour:palered/brown.

    Texture:Fleshyskin.

    Features:Tapering,withbranchesclusterednearthetip.Lacking

    theknottyappearanceofknotweed.

    Snapability:

    Easy.Rubbery,butlacksthecarrot-likesnappinessof

    knotweed.Coreissimilarcolourtotherestoftheroot,

    lackingthecolourvariationofknotweedrhizome.

    Outer layer:Thinskin,similar

    toknotweed.

    Inner layer:fleshy,withadistinctcore.Orange/yellowincolour,

    butusuallypalerthanknotweed.

    44 Environment AgencyManagingJapaneseknotweedondevelopmentsites

    AppendixIII

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    Plants commonly found on development sites

    External appearance of root or rhizome

    Snap Test

    Scrape Test

    Root / rhizome identification chart - knotweed

    Buddleja (Butterfly bush):

    Introducedshrub(intro:1890),colonisingwastegroundandmasonry.Spreadbyseed.Pink,purpleorwhite

    flowers.Corkybark.Silverundersidetoleaves.

    Colour:Palebrown.

    Texture:Bark-like.

    Features:Barkeasilydamagedandrevealingthewoodycore.

    Tough.

    Snapability:Verypoor.Tendstoripratherthanbreakcleanly.

    Distinctcore.

    Outer layer:Thinwrinkledbark.

    Inner layer:Whitewood.

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    Plants commonly found on development sites

    External appearance of root or rhizome

    Snap Test

    Scrape Test

    Root / rhizome identification chart - knotweed

    Sycamore (and most other trees):

    Treesarecommoncolonisersofwasteground.Theirrootsareoccasionallymistakenforrhizome.

    Colour:Mid-brown.

    Texture:Fairlysmoothandeven.

    Features:Doesnotfragmentaseasilyasknotweed.Tendtoremain

    intaperedsections.Finerootlets.

    Snapability:Verypoor.Verywoody,tendingtobreakandtearrather

    thansnap.Fairlyuniformincolourandstructure.

    Outer layer:Toughbark.

    Inner layer:Palecolouredwood.

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    General characteristics Yes No

    Twig-likeappearance

    Table for the identification of Japanese knotweed rhizome

    Fleshywithhardnesslikecarrot

    Exterior of rhizome Yes No

    Colourdarkbrown,likecoffeegranules

    Textureoftheouterbarkleathery

    Brittlewhenfresh,breakeasilylikecarrot

    Youngrhizomeiswhiteandverysoft

    Whenbarkisremoved,tissueispaleorange/yellow

    Nodesat1-2cmspacing

    Nodesslightlyenlargedandknotty

    Atnodeswhitefibrousrootsarecommon

    Ifpresent,freshbudsatnodesarered/pink

    Interiorofrhizome

    Longitudinal view Yes No

    Colour:paleorangeandlightyellow,similartoacarrot

    Centralcoreisusuallydarkorange/brown,likerust,

    andsometimeshollow

    Cross section Yes No

    Cortexwithrayscomingfromcentre,likespokesfromawheel

    TOTAL

    Iftheyesscoreisgreaterthantheno

    score,thentreattheidentifiedrhizome

    asJapaneseknotweed.

    Reproducedwithkindpermissionoftheformer

    WelshDevelopmentAgency,nowpartoftheWelsh

    AssemblyGovernment.

    48 Environment AgencyManagingJapaneseknotweedondevelopmentsites

    AppendixIV

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    ManagementplanforJapaneseknotweedat:

    Tableofcontents

    1. INTRODUCTIONTOTHESITE 2

    1.1 Descript ionofthesite

    1.2 Sitemanagementobjectives

    1.3 Limitationsandthreatstomanagementobjectives

    1.4 Inventor yofthesite

    2. OVERVIEWOFMANAGEMENTPLAN 3 2.1 Briefdescriptionofmanagementplan

    2.2 Set tingpriorities

    2.3 P reventingf urtherspread

    3. SPECIFICCONTROLPLANSFORJAPANESEKNOTWEED 4 3.1 Managementobjectives

    3.2 Managementoptions

    3.3 Actionsplanned

    3.4 Howactionswillbeevaluated

    3.5 Resourceneeds

    3.6 Resultsofevaluation

    4. SUMMARYINFORMATION 5 Table1: Priorityareas

    Table2: Controlmethods

    Table3: Implement ationschedule

    Table4: P rojectedresourcesandcos ts

    5. REFERENCES 6

    6. APPENDICES 7 Appendix1. SitemapsandJapaneseknotweeddistributiondaps

    Appendix2. Japaneseknotweedrecordingsheet

    Appendix3. Formsforcollectingmonitoringdata

    Appendix4. Herbiciderecords

    Appendix5. Wasterecords

    Appendix6. Usefulcontacts

    Periodcovered:

    Prepairedby: Date:

    Environment AgencyManagingJapaneseknotweedondevelopmentsites49

    AppendixV

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    Descriptionofthesiteboundaries,topography,access,specialfeatures:IncludemapsofsitepreandpostdevelopmentinAppendix1.

    DescriptionoftheJapaneseknotweeddistributiononsiteandadjacenttothesite:IncludedetailedmapsshowinglocationofJapaneseknotweedandexactareacovered(allocateauniqueidentification

    numbertoeachlocationofJapaneseknotweedonsitee.g.JK001,JK002etc).

    Completearecordingsheetforeachlocation(seeAppendix2)IfJapaneseknotweedispresentonadjacentland,record

    distributionanddetailsoflanduseandlandownership.

    1.4 Inventory of the Site

    DescriptionofhowthepresenceofJapaneseknotweedposesathreatto,orlimitsmanagementobjectives.Includeforexample: Increasingcostsofdevelopment

    Delaysinschedulingofworks

    Damageorpotentialdamagecausedbytheplant

    PotentialforspreadofJapaneseknotweedfromwithinandoutsidethesiteboundary

    (e.g.withinthesite,fromadjacentlandorviawatercourses)

    PotentialforimportofJapaneseknotweedonmaterials

    1.3 Limitations and Threats to Site Management Objectives

    Briefdescriptionoftheexistingsite(priortoanydevelopment):Includepresenceofanynatureconservation

    featurese.g.protectedspecies;vegetationtoberetained;watercourses(includeproximityofstreamsorriversifadjacenttothesite);buildingstoberetained;drainageonsite;otherrelevantfeatures.

    Briefdescriptionoftheproposeddevelopment:Includeanyproposedimportorexportofsoils.

    Briefdescriptionofthesitepost-development:Includeanypartsofthesitedesignatedforlandscaping,conservationareasetc.

    1.1 Description of the Site

    Briefdescriptionofsitemanagementobjectives:Includeproposedtimescaleandplansforrestoration/re-planting.

    1.2 Site Management Objectives

    Introduction to the site DRAFT TEMPLATE

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    Descriptionofmethodstobeemployedtopreventfurtherspread:

    Includeforexample: IsolationofJapaneseknotweedonsitebyfencingtoavoiddisturbanceduringtreatment.

    Assessmentofriskofre-invasionofJapaneseknotweedfromadjacentland.

    LiaisonwithadjacentlandownerstotreatJapaneseknotweedwhichposesarisktothesite.

    ProcedurestoensurethatimportedmaterialsarefreefromJapaneseknotweed.

    Identificationofdesignatedhaulroutesthroughsitetoavoidcontamination.

    Descriptionoftrainingtobegiventositeoperatorsandcontractorsduringdevelopment:Includeforexampleidentificationoftheplant(bothaboveandbelowgroundparts)andtrainingonsitepracticesto

    preventfurtherspread.

    2.3 Preventing Further Spread

    Examples: AreasofJapaneseknotweedonsitewhichrequirerapidtreatmentwillbeidentified.

    Preventionoffurtherinfestationoftheplantonthesiteisapriority.

    Replacementvegetation/habitatwillbeconsideredratherthanjusteliminatingJapaneseknotweed.

    Controlmethodswhichsuitthelocationandtimescalewillbeadopted.

    Implementationwillbebasedontheaboveinformation. Regularmonitoringwillbecarriedout.

    Managementwillberevisedinresponsetofeedbackfromtheabove.

    Assignprioritytoeachmanagementobjective:(e.g.High,MediumLow)-RecordprioritiesforeachlocationoftheplantinTable1.

    2.2 Setting Priorities

    AllocatepersonneltooverseeJapaneseknotweedmanagementandtoberesponsibleforsignoffat

    theendofthetreatmentperiod:

    Overview of weed management plan

    2.1 Brief Description of Management Plan

    DRAFT TEMPLATE

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    Sitename:

    Responsiblemanager: Dateplanlastupdated:

    Brieflydescribethelocationstobetreated,materialsandmethodstobeused,andanapproximate

    scheduleforcontrolandmonitoringactivities.RecorddetailsinTable2.

    3.3 Actions planned (treatments and monitoring)

    Viablecontroloptionsare: Notreatment;

    Treatmentalternative1

    Treatmentalternative2etc.

    Brieflydiscussthealternatives,indicatewhicharepreferredandtheconditions(sizeofareatreated,location,timing,

    totalanticipatedcost,etc.)underwhichtheymaybeused.

    Buildinrestrictedflexibilitytoallowconditionsonsitetobetakenintoconsideration.Statewhothesiteoperatives

    shouldcontactwhennoneofthelistedalternativescanbecarriedout.

    3.2 Management options

    Establishmeasurableobjectivesfortheplannedcontrolactivities.Include: theimpactondensity,cover,etc.thatyouwanttoachieve;

    thesizeoftheareainwhichyouhopetoachievethis;

    theperiodinwhichyouhopetoachieveit.

    Examples: Objective1. EliminationofJapaneseknotweedonallpartsofthesitewithin5years.

    Objective2. Reducepercentagecoverby50%on1haofthesitewithin2years.

    Objective3. PreventionoffurtherspreadofJapaneseknotweedonsite. Objective4. Co-ordinationwithadjacentlandownerstocommenceactivetreatmentofJapaneseknotweedin

    adjacentareaswithin1year.

    3.1 Management objectives (measurable)

    Specific control plans for Japanese knotweed

    Outlinethemethodsthatwillbeusedtomonitorcontrolactivitiesandthecriteriathatwillbeusedto

    evaluatesuccessorfailureoftheprogram.Thecriteriaforsuccessshouldbebasedontheprogramsobjectivesand

    goals.(DatasheetstobeusedwhencollectingmonitoringdatashouldbeincludedinAppendix3).

    3.4 How actions will be evaluated (criteria for success)

    Estimatetheamountoftimeforstaff,materials,contractorsetc.andmoneythatwillberequiredtocarry

    outtheplannedcontrol,monitoringandevaluation.RecordinTable4.

    3.5 Resource needs

    Thissectionistobefilledinlater,preferablywithin1year,whenmonitoringdatahasbeentakenand

    evaluated.Theevaluationshouldbeusedtodeterminewhetheranyofthesections3.1-3.5aboveshouldbemodified.

    3.6 Results of evaluation

    DRAFT TEMPLATE

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    Summary information

    Table 1 - Priority areas

    Area Descriptionandjustificationsofpriority Prioritylevel

    Table 2 - Control Methods

    Area ControlMethod Carriedoutby

    Table 3 - Implementation Schedule

    Scheduletheplanning,surveying,andtreatmentforJapaneseknotweedforatleastthenextyear.

    TreatmentSchedule Date

    Table 4 - Projected resources and costsRevisethistableannuallyaftercomparingestimatedtoactualcosts.

    Item Description Projectedresources Projectedcosts ActualCosts

    References

    Listreferencescitedorused.Forexample:

    Child,L.E.andWade,P.M.(2000)TheJapanese

    KnotweedManual.PackardPublishingLimited,Chichester.ISBN1853411272

    EnvironmentAgencyandCornwallCountyCouncil

    (1998)Japaneseknotweed.Howtocontrolitand

    preventitsspread.EnvironmentAgency,Bodmin.

    EnvironmentAgencyandCornwallCounty

    Council(2001)Japaneseknotweed.Guidancefor

    householdersandlandowners.CornwallCounty

    Council.

    WelshDevelopmentAgency(1998)Thecontrolof

    Japaneseknotweedinconstructionandlandscape

    contracts:Modelspecification.FormerWelsh

    DevelopmentAgency,nowpartoftheWelshAssemblyGovernment.

    WelshDevelopmentAgency(1998)Theeradication

    ofJapaneseknotweed:Modeltenderdocument.

    FormerWelshDevelopmentAgency,nowpartofthe

    WelshAssemblyGovernment.

    DRAFT TEMPLATE

    DRAFT TEMPLATE

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    Remarks:

    Attachcopiesofthemap(s)ofthesite,andofmapsdepictingtheextentoftheJapaneseknotweedonthesite.

    Appendix 1 - Distribution maps

    Appendices

    ExampleofJapaneseknotweedRecordingSheet(completeanewsheetforeachareaofJapaneseknotweed).

    Appendix 2 - Japanese knotweed recording sheet

    Averageheightofstems

    Max.stemdiameterat

    30cmaboveground

    Vegetationcomposition

    Proximitytowatercourses

    Slope

    >2.5m

    >2.5cm

    1-2.5m

    1-2cm

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    DRAFT TEMPLATE

    Attachcopiesofdatacollectionsheets.

    Appendix 3 - Forms used in collecting monitoring data

    Attachdetailsofherbicidesused,doserateandapplicationratesanddatesapplied.

    Appendix 4 - Herbicide records

    AttachdetailsofwasterecordsforanymaterialcontainingJapaneseknotweedtakenoffsite.

    Appendix 5 - Waste records

    AttachdetailsofContractors,LocalAuthoritycontact,EnvironmentAgencycontact,adjacentlandownersetc.

    Appendix 6 - Useful contacts

    Environment AgencyManagingJapaneseknotweedondevelopmentsites55

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    ManagementplanforJapaneseknotweedat:

    Periodcovered:

    Prepairedby: Date:N.E. Body

    2006-2010

    April 2006

    Environment AgencyManagingJapaneseknotweedondevelopmentsites57

    Tableofcontents

    1. INTRODUCTIONTOTHESITE 2

    1.1 Descript ionofthesite

    1.2 Sitemanagementobjectives

    1.3 Limitationsandthreatstomanagementobjectives

    1.4 Inventor yofthesite

    2. OVERVIEWOFMANAGEMENTPLAN 3 2.1 Briefdescriptionofmanagementplan

    2.2 Set tingpriorities

    2.3 P reventingf urtherspread

    3. SPECIFICCONTROLPLANSFORJAPANESEKNOTWEED 4 3.1 Managementobjectives

    3.2 Managementoptions

    3.3 Actionsplanned

    3.4 Howactionswillbeevaluated

    3.5 Resourceneeds

    3.6 Resultsofevaluation

    4. SUMMARYINFORMATION 5 Table1: Priorityareas

    Table2: Controlmethods

    Table3: Implement ationschedule

    Table4: P rojectedresourcesandcos ts

    5. REFERENCES 6

    6. APPENDICES 7 Appendix1. SitemapsandJapaneseknotweeddistributionmaps

    Appendix2. Japaneseknotweedrecordingsheet

    Appendix3. Formsforcollectingmonitoringdata

    Appendix4. Herbiciderecords

    Appendix5. Wasterecords

    Appendix6. Usefulcontacts

    AppendixVI

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    Briefdescriptionoftheexistingsite(priortoanydevelopment):Includepresenceofanynatureconservation

    featurese.g.protectedspecies;vegetationtoberetained;watercourses(includeproximityofstreamsorriversifadjacenttothesite);buildingstoberetained;drainageonsite;otherrelevantfeatures.

    Briefdescriptionoftheproposeddevelopment:Includeanyproposedimportorexportofsoils.

    Briefdescriptionofthesitepost-development:Includeanypartsofthesitedesignatedforlandscaping,conservationareasetc.

    1.1 Description of the Site

    Introduction to the site DRAFT TEMPLATE

    The site is a brown-field industrial site formerly a textiles factory which has beenvacant for 10 years. Buildings were demolished some 8 years ago. The site coversan area of approximately 6.5 ha. and is surrounded by mature hedgerows with somemature trees. A watercourse runs along the southern boundary of the site in anwesterly direction. Existing vegetation cover is rough ruderal vegetation with severalpatches of Japanese knotweed within the site and adjacent to the watercourse.

    The development will require site levelling, construction of a service road,installation of drainage and services and the construction of a building. Somematerial will be exported and the remaining inert material will be used on-site inconstruction works. Import of top soils for landscaping around car parking andcommunal areas will be required.

    The proposed development will incorporate 3 sports pitches and a car parking areawith a club house and facilities to the north eastern corner. A service road willprovide access onto the site. Hedgerows to be retained and landscaping to be carriedout in the vicinity of the clubhouse. A conservation area to the southern boundary isproposed alongside the watercourse.

    Briefdescriptionofsitemanagementobjectives:Includeproposedtimescaleandplansforrestoration/re-planting.

    1.2 Site Management Objectives

    The site is expected to be operational 24 months after works commence.Landscape planting and restoration of the boundary hedgerows and riparianvegetation will be carried out during the construction period.

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    Introduction to the site DRAFT TEMPLATE

    DescriptionofhowthepresenceofJapaneseknotweedposesathreatto,orlimitsmanagement

    objectives.Includeforexample: Increasingcostsofdevelopment

    Delaysinschedulingofworks

    Damageorpotentialdamagecausedbytheplant

    PotentialforspreadofJapaneseknotweedfromwithinandoutsidethesiteboundary

    (e.g.withinthesite,fromadjacentlandorviawatercourses)

    PotentialforimportofJapaneseknotweedonmaterials

    1.3 Limitations and Threats to Site Management Objectives

    The presence of Japanese knotweed on site will increase the financial burden on thisproject both in terms of treatment costs and in delays in scheduling constructionworks. Any Japanese knotweed left untreated has the potential to damage hard

    surfaces and sports pitches and to delay the landscaping. A large area of Japaneseknotweed exists outside the site to the eastern boundary and there is potentialfor further spread into the site along the watercourse. The development willnecessitate the export of some material and the import of top soils for landscapingand for sports pitches. Materials leaving or brought onto site should be checked toensure that Japanese knotweed does not leave or enter the site via this route.

    Descriptionofthesiteboundaries,topography,access,specialfeatures:IncludemapsofsitepreandpostdevelopmentinAppendix1.

    DescriptionoftheJapaneseknotweeddistributiononsiteandadjacenttothesite:IncludedetailedmapsshowinglocationofJapaneseknotweedandexactareacovered(allocateauniqueidentification

    numbertoeachlocationofJapaneseknotweedonsitee.g.JK001,JK002etc).

    Completearecordingsheetforeachlocation(seeAppendix2)IfJapaneseknotweedispresentonadjacentland,record

    distributionanddetailsoflanduseandlandownership.

    1.4 Inventory of the Site

    The site is reasonably level with access from the B4452 on the western boundary.The site slopes down steeply towards the watercourse on the southern boundaryand there is potential in this area to accommodate a conservation area. Two matureWillow trees are located in the south western corner of the site.

    Boundaries to the northern, western and eastern edges of the site are composedof mature hedgerow species including Hawthorn, Field maple, Blackthorn with some

    mature Ash and Oak trees.

    There are 6 distinct patches of well established Japanese knotweed on the sitein addition to 2 areas where a few stems have become established. These aredescribed in the accompanying maps and recording sheets. On adjacent land to

    the east of the site, a large area of Japanese knotweed is present adjacent to thewatercourse. Total area of Japanese knotweed on site is estimated at 1,900m2.Total area of Japanese knotweed on adjacent land is estimated at 500 m2.

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    Overview of weed management plan DRAFT TEMPLATE

    AllocatepersonneltooverseeJapaneseknotweedmanagementandtoberesponsibleforsignoffatthe

    endofthetreatmentperiod:

    2.1 Brief Description of Management Plan

    The Management of Japanese knotweed on site shall be overseen by the siteforeman and in his absence, his deputy. This Management Plan and appendices andrevisions of this plan shall be kept for future site owners. This Management Planshould be read in conjunction with the Environment Agency Code of Practice.

    Examples: AreasofJapaneseknotweedonsitewhichrequirerapidtreatmentwillbeidentified.

    Preventionoffurtherinfestationoftheplantonthesiteisapriority. Replacementvegetation/habitatwillbeconsideredratherthanjusteliminatingJapaneseknotweed.

    Controlmethodswhichsuitthelocationandtimescalewillbeadopted.

    Implementationwillbebasedontheaboveinformation.

    Regularmonitoringwillbecarriedout.

    Managementwillberevisedinresponsetofeedbackfromtheabove.

    Assignprioritytoeachmanagementobjective:(e.g.High,MediumLow)-RecordprioritiesforeachlocationoftheplantinTable1.

    2.2 Setting Priorities

    High Priority

    Areas of Japanese knotweed which require rapid treatment -JK002 on site access routeJK004 overlying site drainage routeJK005 and JK008 on land proposed for sports pitches.

    Prevention of further spread. All Japanese knotweed areas to be isolated prior to any work being carriedout on site. This to include an area of at least 7 m laterally from above ground stems to ensure that anyunderground parts are also isolated.

    All personnel on site to receive training on identification of Japanese knotweed both above and belowground parts.

    Medium Priority

    Control Methods for remaining areas of Japanese knotweed. A range of control methods will be adoptedto include excavation and stock piling for future treatment (bund method), in-situ herbicide treatment anda combination of digging and subsequent herbicide application (combination method). Herbicides will beselected which are suitable for site use e.g. restrictions on herbicides which can be used in or near water.

    Monitoring -A scheme for monitoring will be agreed with the site foreman who will be ultimately responsible foroverseeing the control of Japanese knotweed on site.

    Management -This management plan will be reviewed on a regular basis and in any case every 6 months from siteacquisition to site completion.

    Low Priority

    Replacement vegetation. JK003 adjacent to watercourse once eliminated should be replaced with grass

    cover to prevent bankside erosion.

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    Descriptionofmethodstobeemployedtopreventfurtherspread:

    Includeforexample: IsolationofJapaneseknotweedonsitebyfencingtoavoiddisturbanceduringtreatment.

    Assessmentofriskofre-invasionofJapaneseknotweedfromadjacentland.

    LiaisonwithadjacentlandownerstotreatJapaneseknotweedwhichposesarisktothesite.

    ProcedurestoensurethatimportedmaterialsarefreefromJapaneseknotweed.

    Identificationofdesignatedhaulroutesthroughsitetoavoidcontamination.

    Descriptionoftrainingtobegiventositeoperatorsandcontractorsduringdevelopment:Includeforexampleidentificationoftheplant(bothaboveandbelowgroundparts)andtrainingonsitepracticesto

    preventfurtherspread.

    2.3 Preventing Further Spread

    Overview of weed management plan DRAFT TEMPLATE

    All areas affected by Japanese knotweed to be fenced and isolated from activitieson site immediately to avoid potential for spread on-site. An area including aperimeter of at least 7m from the above ground stems should be isolated. See

    Environment Agency Code of Practice 2.1, 2.2There is a high risk of invasion from neighbouring land. Contact the landowner andagree on a co-ordinated treatment programme.

    No material to leave the site from the isolated Japanese knotweed areas.All topsoil and materials brought onto site to be checked prior to accepting. SeeEnvironment Agency Code of Practice 2.3No new materials to be stored adjacent to Japanese knotweed isolated areas.

    No movement of Japanese knotweed contaminated material across site unless ondesignated haul routes, avoiding Japanese knotweed isolated areas.

    All contractors and site operatives on site to receive training in Japaneseknotweed identification and site practices. Training to be given on day 1. Postershighlighting the key features of the plant to be displayed in all communal areas (see

    Environment Agency Code of Practice Appendices I-IV).

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    Sitename:

    Responsiblemanager: Dateplanlastupdated:

    Establishmeasurableobjectivesfortheplannedcontrolactivities.Include: theimpactondensity,cover,etc.thatyouwanttoachieve;

    thesizeoftheareainwhichyouhopetoachievethis;

    theperiodinwhichyouhopetoachieveit.

    Examples: Objective1. EliminationofJapaneseknotweedonallpartsofthesitewithin5years.

    Objective2. Reducepercentagecoverby50%on1haofthesitewithin2years.

    Objective3. PreventionoffurtherspreadofJapaneseknotweedonsite. Objective4. Co-ordinationwithadjacentlandownerstocommenceactivetreatmentofJapaneseknotweedin

    adjacentareaswithin1year.

    3.1 Management objectives (measurable)

    Specific control plans for Japanese knotweed DRAFT TEMPLATE

    Dummy Site

    Site Foreman May 2006

    Objective 1

    Immediately contain existing Japanese knotweed on site and preventfurther spread.

    Objective 2

    Reduce the percentage cover of Japanese knotweed on site by 50% within1 year.

    Objective 3

    Liaise with adjacent landowner to commence active treatment of Japaneseknotweed within 1 year.

    Objective 4

    Eliminate Japanese knotweed on site within 4 years.

    Viablecontroloptionsare: Notreatment;

    Treatmentalternative1

    Treatmentalternative2etc.

    Brieflydiscussthealternatives,indicatewhicharepreferredandtheconditions(sizeofareatreated,location,timing,

    totalanticipatedcost,etc.)underwhichtheymaybeused.

    Buildinrestrictedflexibilitytoallowconditionsonsitetobetakenintoconsideration.Statewhothesiteoperatives

    shouldcontactwhennoneofthelistedalternativescanbecarriedout.

    3.2 Management options - (continue on next page)

    The various options for the control of Japanese knotweed include in situ herbicide

    treatment, combined treatment of digging and herbicide, excavation and stock-pilingfor future treatment (the bund method), excavation and burial on site or excavationand removal off site. It is not an acceptable option to consider doing nothing.

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    Summary information

    3.2 Management options - (continued)

    DRAFT TEMPLATE

    Excavation and removal off site is a rapid method of removal but is costly, and in thelong term unsustainable. The particular site conditions do not allow for excavationand burial on site to the required depth of 5m (see Environment Agency Code ofPractice). As there is sufficient space on site, excavation and stock-piling on sitefor subsequent herbicide treatment (the bund method) is a viable option particularlyfor those areas of site which are required to have immediate availability (e.g. accessroad). The remaining areas of Japanese knotweed could be treated by a combineddigging and herbicide treatment or by in-situ herbicide treatment. The range ofherbicides available are limited in the case of the affected areas adjacent to the

    watercourse, but other herbicides could be considered in more open areas away fromwater and mature trees. It may be necessary to vary the herbicide used or themode of application once treatment has commenced. This should be discussed andagreed with the approved contractor.

    Brieflydescribethelocationstobetreated,materialsandmethodstobeused,andanapproximate

    scheduleforcontrolandmonitoringactivities.RecorddetailsinTable2.

    3.3 Actions planned (treatments and monitoring) - (continue on next page)

    JK002, JK004, JK005, JK008Control Method:The Bund Method (See Environment Agency Code of Practice 5.4)

    Treat affected area with an appropriate non-persistent herbicide and leave forat least 1 week.

    Cut and remove canes and leave to dry on site for subsequent burning. Rake the surface of the affected area with tines to remove crowns and surface

    material either leave to dry with canes for burning or spread on top of

    completed bund. Excavate affected area until all rhizome material has been removed. Create bund on a layer of geotextile starting with least infected soil and build

    up to 0.5 m to 1 m in height laying crown material and/or stems on top.

    Treat regrowth with appropriate herbicide. Disturb bund after one or two treatments and treat regrowth with

    appropriate herbicide.

    Continue to treat and disturb until no further regrowth appears.

    Soil from the bund may not be used off-site.

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    Specific control plans for Japanese knotweed DRAFT TEMPLATE

    Brieflydescribethelocationstobetreated,materialsandmethodstobeused,andanapproximate

    scheduleforcontrolandmonitoringactivities.RecorddetailsinTable2.

    3.3 Actions planned (treatments and monitoring) - (continued)

    Estimatetheamountoftimeforstaff,materials,contractorsetc.andmoneythatwillberequiredtocarry

    outtheplannedcontrol,monitoringandevaluation.RecordinTable4.

    3.5 Resource needs

    Thissectionistobefilledinlater,preferablywithin1year,whenmonitoringdatahasbeentakenand

    evaluated.Theevaluationshouldbeusedtodeterminewhetheranyofthesections3.1-3.5aboveshouldbemodified.

    3.6 Results of evaluation

    JK001, JK006 - Control Method:Combined Treatment Method (See Environment Agency Code of Practice 3.4)

    Cut and remove canes and leave to dry on site for subsequent burning. Rake the surface of the affected area with tines to remove crowns and surface material

    and burn with canes.

    Cultivate affected area to a depth of at least 50 cm depending on the depth to which thebulk of rhizome material exists.

    Re-spread the excavated material over the cultivated area

    Apply appropriate herbicide to regrowth. Check for new growth at 4 - 6 weeks intervals after treatment and re-treat accordingly. Repeat cultivation and herbicide application until no further regrowth appears.JK003, JK007 - Control Method:Application of herbicide to above ground stems in situ using a herbicide approved for use in ornear water e.g. glyphosate (See Environment Agency Code of Practice 3.2, 3.3)

    Cut and remove dead canes during winter for subsequent burning.

    Apply herbicide according to the manufacturers guidelines.

    Check for new growth at 4 - 6 week intervals after treatment and re-treat accordingly.

    Outlinethemethodsthatwillbeusedtomonitorcontrolactivitiesandthecriteriathatwillbeusedto

    evaluatesuccessorfailureoftheprogram.Thecriteriaforsuccessshouldbebasedontheprogramsobjectivesandgoals.(DatasheetstobeusedwhencollectingmonitoringdatashouldbeincludedinAppendix3).

    3.4 How actions will be evaluated (criteria for success)

    Monitoring will be carried out by the contractor and the site foreman prior to anytreatment being carried out to act as a baseline for future monitoring and every 4 6weeks throughout the growth season. The contractor and site foreman will agree the level

    of control achieved and the future treatment schedule. Recording sheets will be used todocument the percentage cover of Japanese knotweed at each affected area on site overat least 3 representative samples of 1 m2.

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    Summary information

    Table 1 - Priority areas

    Area Descriptionandjustificationsofpriority Prioritylevel

    DRAFT TEMPLATE

    JK002, JK004,JK005, JK008

    JK002 on proposed access road,JK004 overlying site drainage route.

    JK005 and JK008 on land proposed forsports pitches. Rapid treatment required

    High

    JK001, JK003,JK006, JK007

    Stands on or adjacent to site boundariescan be treated in-situ

    Medium

    Table 2 - Control Methods

    Area ControlMethod Carriedoutby

    JK003 ContractorHerbicide application

    JK007 ContractorHerbicide application

    JK008Site operativesand contractor

    Bund method

    JK006 Site operativesand contractor

    Combination treatment

    JK005Site operativesand contractor

    Bund method

    JK004Site operatives

    and contractor

    Bund method

    JK002Site operativesand contractor

    Bund method

    JK001Site operativesand contractor

    Combination treatment

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    Summary information

    References

    Listreferencescitedorused.Forexample:

    Child,L.E.andWade,P.M.(2000)TheJapaneseKnotweedManual.

    PackardPublishingLimited,Chichester.ISBN1853411272

    EnvironmentAgencyandCornwallCountyCouncil(1998)Japaneseknotweed.

    Howtocontrolitandpreventitsspread.EnvironmentAgency,Bodmin.

    EnvironmentAgencyandCornwallCountyCouncil(2001)Japaneseknotweed.

    Guidanceforhouseholdersandlandowners.CornwallCountyCouncil.

    WelshDevelopmentAgency(1998)ThecontrolofJapaneseknotweedinconstructionandlandscape

    contracts:Modelspecification.

    FormerWelshDevelopmentAgency,nowpartoftheWelshAssemblyGovernment.

    WelshDevelopmentAgency(1998)TheeradicationofJapaneseknotweed:Modeltenderdocument.FormerWelshDevelopmentAgency,nowpartoftheWelshAssemblyGovernment.

    DRAFT TEMPLATE

    DRAFT TEMPLATE

    Table 3 - Implementation ScheduleScheduletheplanning,surveying,andtreatmentforJapaneseknotweedforatleastthenextyear.

    TreatmentSchedule-BundMethod Date

    Table 4 - Projected resources and costsRevisethistableannuallyaftercomparingestimatedtoactualcosts.

    Item Description Projectedresources Projectedcosts ActualCosts

    Chemical treatment to be carried outprior to excavation if plants are in leaf.

    day.month.year

    Excavate Japanese knotweed and surrounding areauntil all traces of rhizome are removed.

    Stockpile excavated material on protective membrane for treatment.day.month.year

    Chemical treatment to be carried out during growing

    season (March to September).

    day.month.year

    Apply disturbance to stockpile. day.month.year

    Monitor for new growth. day.month.year

    Chemical treatment to be carried out during growingseason (March to September).

    day.month.year

    Chemicaltreatment

    Contractor toapply herbicide

    Materials

    Labour

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    DRAFT TEMPLATE

    Attachcopiesofthemap(s)ofthesite,andofmapsdepictingtheextentoftheJapaneseknotweedonthesite.

    Appendix 1 - Distribution maps

    Appendices

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    Remarks:

    ExampleofJapaneseknotweedRecordingSheet(completeanewsheetforeachareaofJapaneseknotweed).

    Appendix 2 - Japanese knotweed recording sheet

    Averageheightofstems

    Max.stemdiameterat

    30cmaboveground

    Vegetationcomposition

    Proximitytowatercourses

    Slope

    >2.5m

    >2.5cm

    1-2.5m

    1-2cm

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    Environment first: This publication is printed on paper made

    from 100 per cent previously used waste. By-products from

    making the pulp and paper are used for composting and fertiliser, for

    ki t d f ti

    Would you like to find out more about us,or about your environment?

    Then call us on

    08708 506 506 (Mon-Fri 8-6)

    email

    [email protected]

    or visit our website

    www.environment-agency.gov.uk

    incident hotline 0800 80 70 60 (24hrs)floodline 0845 988 1188