2019-11-18 GC Agenda - Item 7 - Attachment 1 - Draft Noosa Biosecurity Plan 2020

                                                      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.
 Chemical                 High level of               Concerns from some          Glyphosate and
                          effectiveness, reduces      sectors of the community    Metsulfuron to
                          other disturbance, and      over potential health       control weeds
                          can be targeted             effects.
 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
 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.



Table 54:4 Advantages and disadvantages of various weed control methods. Steaming is another method
which can be suitable for the built environment.
The options for management of invasive plants is changing all the time with new products and
technologies coming onto the market, with the aim of addressing shortcomings of existing
techniques, and tackling emerging threats. Council has, and will continue to, trial new technologies
as they become available, assessing them for efficacy, safety, cost effectiveness, and potential off-
target impact.




                         5.1.34.1.3           Timing
To maximise management effectiveness different invasive species are controlled at different times.
For example certain plant species may best be controlled during growth stages or prior to
flowering. Table 65 below depicts the seasonal nature of managing invasive plant species.




Noosa Biosecurity Plan 2020                                                                     Page 26