Brisbane City Council divides noxious and environmental weeds into three classes:
Council recommends three ways to deal with the different classes of weeds.
Class E weeds - early detection and eradication
These species could cause severe damage if they become established in Brisbane. You can:
- Regularly check your property to detect any early infestations.
- Immediately remove the infestation.
- Monitor growth.
Class C weeds - containment and reduction
These species are well established in Brisbane and eradication is not a viable option. When getting rid of these weeds, work from the top of a catchment downstream. If there is a large area of weeds, work from the outside of the infestation inwards.
Try to prevent the weeds from spreading further and reduce the size of the infestation by:
- Removing the parent plant or source of infestation.
- Preventing seeding by using the appropriate control method for the species (often not effective with large trees) and schedule for the earliest possible removal.
- Removing any surrounding infestation while small.
Class R weeds - reduce population as part of routine maintenance
These species are well established across Brisbane, are a moderate threat and eradication is not a viable option.
You can look out for infestations and plan for their removal during routine maintenance.
You can read more about the Brisbane Invasive Species Management Plan.