NOOSA BIOSECURITY PLAN 2026-2031 · Attachment 2 - Noosa Biosecurity Plan 2026 draft for stakeholder review

6        Timing of Management Action
Invasive plants

Maximising management effectiveness requires aligning control actions with both the seasonal
behaviour of invasive plants and the reproductive and regeneration phases of priority native
species. Targeting invasive plants at times when they are most responsive to control methods,
such as during early growth or just before flowering, helps reduce their competitive advantage.
Avoiding disturbance during sensitive breeding or flowering and seedling establishment of
native species prevents unintended ecological impacts. For example, winter removal of Lantana
can expose shade-dependent seedling and displace small fauna, making the warmer growing
season better for native species to recover and recolonise. Table 6.1 illustrates the seasonal
nature of invasive plant control in Noosa.

Table 6.1. Seasonal calendar of optimum timing and techniques for invasive plant control

 Invasive           Jan    Feb        Mar   Apr   May   Jun   Jul   Aug     Sep     Oct    Nov    Dec
 plant
 species
 Broad-leaved
 pepper tree
 Cabomba

 Camphor
 laurel
 Cat’s claw
 creeper
 Giant rat’s tail
 grass
 Hygrophilia

 Lantana

 Madeira vine

 Mother of
 millions
 Salvinia

 Singapore
 daisy
 Small-leaved
 privet

              Activity type
              Spray
              Cut and paint / frill
              Manual removal
              Cut and paint & spray




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Noosa Biosecurity Plan DRAFT