15188: Extending WoNS control in the Lower Gascoyne Catchment

    Using contract sprayers and bulldozer operators, the project will adopt a nil-tenure approach and work with landowners to remove several species of Weeds of National Significance (WoNS) with a focus on  cactus plants (Cylindropuntia fulgida var mamillata, Opuntia stricta and Opuntia dejecta); Parkinsonia aculeata; Mesquite (Prosopis spp) and from-root regrowth Tamarisk (Tamarix spp) located in the project area.

    Spraying will occur north of the Gascoyne River focussing on regrowth of Mesquite, Tamarisk; Weedy Cactus and Parkinsonia.  Mechanical removal of Tamarisk will also occur.  The primary 'dozer operational area focus is to be a section of upper river bank on Carnarvon Shire Council-vested land located between freehold horticultural holdings and the Gascoyne River. After the ripping-removal of all the WONS plants present (these are almost exclusively Tamarix aphylla), the soil surface will be re-leveled by the 'dozer. The free-of-soil roots and tree debris will then be concentrated in a planned 6 'windrow-rows' aligned from the SW to the NE - to quieten potential future major river flood flow over the land and reduce soil erosion.

    Investment: $ 30 000
    In-kind contribution: $ 4 610
    Delivery organisation: Carnarvon Land Conservation District Committee
    Project duration: November 2016 - April 2017
    Location: Shire of Carnarvon
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