Residents are encouraged to report any sightings. Officials issue warning after making concerning discovery in US lake: 'Can ...

Unwitting Australians taking to the water as the weather warms up are being urged to consider the "biosecurity threat" they pose to our waterways. A bush regenerator and horticultural science expert ...

The weeds keep returning, but so do the men determined to clear them, while City Parks explains why the dam won’t stay clean.