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    09091: Blackadder sub-catchment biosecurity

    Blackadder wetlands before the removal of arum lily. Courtesy Blackadder Woodbridge Catchment Group Inc.
    Blackadder wetlands before the removal of arum lily. Courtesy Blackadder Woodbridge Catchment Group Inc.

    Blackadder wetlands are part of a priority 1 sub-catchment of the Swan River and the site of a former Aboriginal corroborree ground. A long history of grazing has destroyed native flora and introduced invasive weeds into the wetlands.

    With funding from the State NRM program, the Blackadder Woodbridge Catchment Group Inc. is restoring the wetlands by removing infestations of arum lily and other invasive weeds, and replanting with local flora.

    Investment: $ 25 000
    In-kind contribution: $ 13 285
    Delivery organisation: Blackadder Woodbridge Catchment Group Inc.
    Project duration: August 2010 - September 2011
    Location: Blackadder Creek, Midland

    Major project achievements

    • Infestation of arum lily permanently controlled in the Blackadder wetlands with no regeneration observed.
    • Remnant native bulb species protected from competition and destruction caused by arum lily infestation.
    • Natural regeneration of native bulb species (Bolboshoenus caldwe/liiandTypha domingensis),Eucalyptus rudisand annual species (Alternanthera nodiflora, Lobelia heterophyllaandPersicaria decipiens) following the removal of arum lily exceeded expectations.
    • 6880 seedlings propagated from local provenance seeds were planted as part of this project.
    • The project resulted in the engagement of community and stakeholders, including local government and Indigenous representatives.

    Project partners

    Eastern Metropolitan Regional Council, City of Swan

    More information

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