Some naturally occurring red azolla is slowly spreading across the top lake at Canavan Gracie Recreational Park. We have a page on the website about this growth for the information of residents. You can access it here.
It is a naturally occurring growth and is fed by nutrients in the run off of storm water. Red Azolla effects most man made waterways on the Sunshine Coast and is closely monitored by Council.
A good downpour of rain and the resultant ‘flushing’ of the lakes is usually enough to clear any small outbreak.
It can be removed manually but this is an intensive process and is usually the last resort of council. If red azolla effects one man made lake you can be assured it is effecting most man made lakes across the Sunshine Coast.
Several years ago both Canavan Gracie Recreational Park lakes were fully covered by the growth which meant Council had no choice but to have them and all man made lakes on the Sunshine Coast controlled by Council cleared of the growth. This is an expensive and time consuming exercise.
At this stage the problem is relatively minor. A spring storm and resulting downpour should be enough to clear this early growth.
We can only keep our fingers crossed.