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|