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    10064: Protection of rare flora against Phtophthora attack on conservation zone property in Keysbrook, WA

    Phosphite being injected into the trunks of dieback-affected banksias. Courtesy Keysbrook Environmental Group
    Phosphite being injected into the trunks of dieback-affected banksias. Courtesy Keysbrook Environmental Group

    This piece of bushland in Keysbrook is part of Bush Forever site 77, a privately owned property covenanted by the National Trust WA.  It has a total area of 130 ha and contains a number of threatened and rare species including:

    • Glossy-leaved hammer orchid (Drakea elastic)-declared rare
    • Stachystemon sp. Keysbrook-only once previously recorded
    • Triggerplant (Stylidium sp. Keysbrook)-considered poorly collected
    • Hensmania lily (Hensmania turbinate)-extent of known range
    • Dwarf cypress (Actinostrobus acuminatus)-poorly preserved
    • Hypocalymma erecefolia (never previously recorded north of Harvey)
    • Conospernum capitatum (never previously recorded north of Busselton)
    • Leucopogon aff flavescens (last known population).

    The bushland also supports an impressive range of birds and reptiles as well as honey possums and bandicoots.

    With the help of State NRM Program funding, this project aims to protect the bushland from Phytophthora-a form of dieback-through the continuation of a phosphite treatment program that has shown considerable promise in the area over a number of years.

    Investment: $ 14 100
    In-kind contribution: $ 8 400
    Other contribution: $ 9 200
    Delivery organisation: Keysbrook Environmental Group
    Project duration: December 2011 - August 2012
    Location: 10 km west of Keysbrook town site

    Major project achievements

    • 5 monitoring sites established including motions sensor cameras to monitor feral animal activity.
    • Weeds removed and sprayed throughout the whole reserve.
    • Two feral cats removed from the reserve and baits laid to control foxes.
    • 2340 meters of dieback front treated with trunk injections and folia sprays of phosphite.
    • Limestone buffer laid to protect pristine Bassendean sands Banksia woodland.
    • Experimental planting into active dieback site of seedlings treated with phosphate foliar sprays.

    Project partners

    Landcare Serpentine Jarrahdale Inc; Caring for our Country

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