Shrubs to large trees. Two groups of Acacias: those with pinnate leaves (leaflets arranged in two rows on either side of stalk); & those with flat phyllodes (extensions of stem). Flowers are spikes or many-flowered round heads & usually yellow or cream. Long flat seedpods.
Roadsides, waste places, shrubland. Thrive in most areas but prefer poor or stony soil with good drainage & full sun.
Seed prolifically & regenerate well after fire. Some species form dense stands by suckering.
Dense stands are a serious threat to regenerating bush. Nitrogen fixer.
Succeeded in tall canopy habitats by taller native species where their seedlings exist & have some space. These sites can be left to regenerate (20-40 years), aided by selective slashing. Don’t mow site, as wattle recovers faster than native species. & the higher light levels induce more seed germination. Clear all roads, quarries & other sources. Maintain native groundcover wherever possible.
1. Hand pull seedlings minimising soil disturbance.
2. Make cuts at 100ml spacings around the base of tree & fill each cut with 5ml triclopyr undiluted.
3. Ringbark trees; ensure danger to public from falling branches is minimised. Paint ringbarked area immediately with herbicide (50ml triclopyr/1L or 50ml Tordon BK/1L).
4. Where trees have been felled, paint stump (50ml triclopyr/1L or 50ml Tordon BK/1L).
5. Spray where appropriate, spring - summer, (5g metsulfuron + 10ml penetrant/10L water or
60ml Tordon BK+10ml penetrant/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.