2019-11-12 - P&E Agenda - Item 3 - Attachment 1 - Draft Noosa Biosecurity Plan 2020

                         5.1.2       Management techniques
For on-ground actions there are various methods to control invasive weeds as summarised in
Figure 4 and Table 4.




               Figure 4 Integrated weed management (Source: Annie Klodd in IWM)

Each method of invasive plant control has advantages and disadvantages as tabled below.

 Method                   Advantages                  Disadvantages                   Examples
 Mechanical               Targeted                    Can be labour intensive         Groundsel at young
                                                      unless using machinery.         growth stage
                                                      Still requires follow up with
                                                      other methods.
 Cultural                 Can be cost effective       Can be labour intensive         To minimise spread
                                                      and high risk if not well       avoid slashing Giant
                                                      managed (e.g. fire              Rat Tail grass prior
                                                      management)                     to seeding.
                                                                                      Fire management.
 Biological               Once established self-      Expensive, requires years       Biological control of
                          sustainable                 of research, potential          Lantana and
                                                      impacts to non-target           Salvinia
                                                      species
 Chemical                 Cost effective and can be   Concerns from some              Glyphosate and
                          targeted                    sectors of the community        Metsulfuron to
                                                      over potential health           control weeds
                                                      affects

Table 4 Advantages and disadvantages of various weed control methods. Steaming is another
method which can be suitable for the built environment.



Noosa Biosecurity Plan 2020                                                                        Page 12