Japanese knotweed Australia 
Japanese knotweed is particularly problematic in riparian areas. Where it can alter the hydrology and structure of the stream channel, increase sedimentation, and reduce water quality. This can have negative impacts on aquatic species that rely on healthy stream habitats.
Damage to infrastructure and buildings
In addition, Japanese knotweed can also cause damage to infrastructure and buildings in Australia. As it can grow through concrete, asphalt, and other hard surfaces. This can lead to costly repairs and maintenance expenses for property owners and managers.
Efforts are underway in Australia to control and manage the spread of Japanese knotweed. This includes the use of mechanical, chemical, and biological control methods. As well as public education and awareness campaigns to prevent the spread of the plant.
Moreover, Japanese knotweed is a significant threat to the natural and built environments of Australia. Property owners and managers need to be aware of its presence and take appropriate steps to control and remove it if it is found on their property.
For example, the Biosecurity Act 2015 (Commonwealth) and the Biosecurity (Prohibited and Conditionally Non-prohibited Goods) Determination 2016 (Commonwealth) provide a legal framework for managing the biosecurity risks associated with the import, export, and movement of goods and materials that could introduce invasive species into Australia.
Legislation and regulations related to invasive species management
In addition, many state and territory governments have their legislation and regulations related to invasive species management. For example, in New South Wales, the Biosecurity Act 2015 (NSW) and the Biosecurity Regulation 2017 (NSW) provide a legal framework for the control and management of invasive species, including Japanese knotweed.
Under these regulations, property owners and managers have a legal obligation to control and manage the spread of invasive species on their property. Failure to do so can result in fines and other penalties.
Moreover, there is a range of regulations in place in Australia to control the spread of Japanese knotweed and other invasive species. Property owners and managers should be aware of these regulations and take appropriate steps to comply with them. To protect the natural and built environments of Australia.