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a weed species prioritisation system
Sweet Pittosporum - Pittosporum undulatum
Classifying weeds according to their invasive aspects, impacts and abundance and their individual biology is absolutely essential to proceeding in a systematic and efficient manner. Adapting and refining the priorities to seasonal and site specific conditions and actual outcomes over time is also essential
KEYSTONE - K
Species that totally dominate structurally and floristically/old populations that have reached the peak of their invasion potential in a given area
·
Many species (flora and fauna) may have become dependent
Work slowly and systematically from retention areas outwards
Remove mature specimens first
Keep in mind buffers/habitat
SMALL PATCHES - S
Of variable risk, but easiest to eliminate.
· S1 - High risk = High priority
Eliminate across the site. These refer to those that genetically
polluteand therefore threaten the underlying
integrity of the system and those weeds that are extremely difficult
toeradicate once established
· S2 - Moderate risk = Moderate priority Eliminate from retention areas
first
· S3 - Negligible risk = lowest priority
UBIQUITOUS SPECIES - U
Scattered weeds of disturbed areas. ·
Hard to eliminate - Look at management regime
· Eliminate in retention areas but of low priority elsewhere
| weed prioritisation.pdf |
