Development Application part 2 OF 2 All of CD, Information in notes - MCU12/0216

CSR Building Products Limited                                                                                                                         Page 34
West Ridge Quarry
Site Based Management Plan



Table 15 – General Weed Control Options

  Infestation Level                   Biological                      Chemical                     Mechanical                      Physical

  Low (Canopy cover Not suitable.                                     Spot-spraying       by Not suitable                          Hand        grubbing
  between 1% and                                                      hand with a registered                                       (remove plants).
  10%)                                                                herbicide.
  Medium (Canopy Release of biological                                Spot-spraying       by Chaining,                 rolling,    Follow up control of
  cover between 11% control agents.                                   hand with a registered raking    or               back-      seedlings – could
  and 50%)                                                            herbicide.             ploughing.                            include     physical
                                                                                                                                   removal.
  High (Over 50%                      Inspect infestation to Aerial spraying with a                Attach with chaining,           Follow up control of
  canopy cover)                       see if, and what, bio- registered herbicide.                 rolling or raking. Use          seedlings – could
                                      control agents are                                           fire to kill any                include     physical
                                      already present. If                                          regrowth and break              removal.
                                      necessary, release                                           seed dormancy.
                                      biological      control
                                      agents and monitor
                                      their progress.

      The Department of Agriculture, Fisheries and Forestry (DAFF) provides an A to Z listing of weeds including plants
      declared under the LP Act. This listing can be found at http://www.daff.qld.gov.au/. Detailed information on controlling
      individual species is provided in the A-Z listing along with fact sheets and information sheets.
      Weed control for the declared weed occurring on-site is presented in Table 17 - Weed Control Option for Baccharis
      halimifolia.

Table 16 - Weed Control Option for Baccharis halimifolia

   Groundsel bush – Baccharis halimifolia
   (Declared status Class 2)

   OPTIMUM TREATMENT TIMES
   Darker colour indicates preferred treatment times
   JAN         FEB         MAR           APR         MAY         JUN
   JUL         AUG         SEP           OCT         NOV         DEC




                                                                                 Groundsel bush (daff.qld.gov.au)
   Chemical                     and
                                         Situation                      Application method                                  Rate
   concentration
   2,4-D amine 500 g/L                   Pastures and rights of way     Air application – requires higher rate for bushes   3.6–5.5 L/ha
   Various trade names                   situated on non-agricultural   High Volume for foliar spray                        0.4 L/100 L
                                         land     (i.e.   industrial,   Cut Stump                                           300 mL/15 L
                                         commercial).                   Misting                                             1.2 L/15 L

   2,4-D acid                            Non agricultural pastures.     Helicopter spraying                                 10 L/ha
   Various trade names                                                  Basal bark or cut stump                             33 mL/1 L kerosene or turps
                                                                        Knapsack foliar spray                               100 mL/10 L
                                                                        Sprinkler spray—1 L/100 m 2                         1 L/10 L - 0.37 L/ha
                                                                        Basal bark or cut stump                             1 L/40 L diesel
   2,4-D sodium                          Commercial and industrial      Spot spray                                          0.275 kg/100 L
   Various trade names                   land       including  non-
                                         agricultural pastures and
                                         rights of way.




December 2012 / file ref. 1271_610_001                                                                                                     GROUNDWORK p l u s