From Geoff Dawe.
There is information (see below) that nitrogen fixing trees such as the Coral tree naturally appear in great numbers in wet areas, particularly wetlands, so their appearance alongside creeks is a natural occurrence. People wishing to poison them need to be asked why they are resisting the regeneration obviously being carried out by the coral trees in that the trees volunteer to add more nitrogen to the soil than if the coral trees were not there? They also need to be asked whether they are aware that parrots in particular feed from its flowers? Coral trees, like camphors and wattles are pioneers. They improve soil and shade levels for climax communities. These pioneers can all be expected to go into recession when they are shaded out by the climax communities.
Our chemical-free method of bush regeneration is to leave the coral trees alone and see them as a benefit. Native trees are planted among them to take advantage of their nitrogen. Branches can be lopped strategically from the coral trees to allow in light if that is preferred. Lopped branches are stacked in pyramid fashion so they are not in contact with soil to prevent the branches re-sprouting.