2016-06-07 - P&E Agenda - Item 3, Attachment 1 - Noosa Parklands Draft Management Plan

 Scientific name             Common name                Classification
 Ipomoea indica              morning glory              Environmental
 Sphagneticola trilobata     Singapore daisy            Class 3
 Sporobolus africanus        Parramatta grass           Class 2
 Lantana camara              lantana                    Class 3; WONS
 Ligustrum lucidum           large-leaved privet        Class 3
 Ligustrum sinense           small-leaved privet        Class 3


 Rhinella marina             cane toad                  Non-declared invasive
 Salvinia molesta            salvinia                   Class 2; WONS
 Schinus terebinthifolius    broad-leaved pepper tree   Class 3


 Vulpes vulpes               red fox                    Class 2



Noosa Council’s Parks and Natural Areas team, along with qualified contractors and the
Heritage Park Bushland group, currently treat the priority pest plant species (Table 4)
throughout a number of zones identified in the park’s BOA. Other weed species that can
easily be eradicated, such as paragrass (Urochloa mutica) in the lagoon, are also
recommended for control. No regeneration works occur or will occur within the recreational
areas (Section 3.5; Figure 4).

Salvinia (a Class 2 pest plant), occurs in one of the park’s lagoons. It is possible the
infestation resulted from emptying an aquarium in the waterway. A range of options are
available for ongoing management of salvinia, including (i) manual removal, (ii) biological
control using weevils and (iii) frog friendly herbicides. However no method provides complete
elimination of salvinia from a water body, and ongoing treatment is required. In the past,
Noosa Council has manually removed salvinia from the park’s lagoon using nets, which cost
Council $4,620. To keep the lagoon clear of salvina, this practice would need to be repeated
annually (i.e. at a cost of $4000 to $6000 per year). There is also a risk of spreading salvinia
offsite from equipment and disposal sites. More recently Council has trialled biological
control (weevil) of salvinia within the lagoon, but due to non-optimal conditions (i.e. shaded
waterbody) this wasn’t successful. The salvinia is contained within the lagoon and there is no
evidence of downstream dispersal. As there is currently no guaranteed method of control, it
is a recommendation of this management plan that the salvinia continue to be monitored by
Council and await the development of a suitable biological control agent. Resources can be
directed to manage pest plants where control efforts would be more successful.

The Heritage Park Bushland Care Group was formed in 2003 and is made up of community
members who play an active role in managing remnant bushland within the park. The
group has completed numerous projects within the bushland areas of the park (Figure 4)
including focussed management on the priority pest plants (Table 4) and other invasive pest
plant species such as setaria and para grass. The group has received a number of State and
Federal grants to assist with regeneration works, including most recently the Heritage Park
Healthy Habitat Project, funded by the Queensland Government Everyone's Environment
grants program. This project will involve controlling pest plants and planting 600 native trees


Final draft Noosa Parklands Park Management Plan                                      page | 21