Lake weed may turn into biofuel

Invasive weeds choking the region’s waterways could be harvested and turned into valuable biofuel in an idea being floated by Waikato Regional Council.

The health of the river’s hydro-lakes has come under increasing scrutiny in recent months after the appearance of a red algal bloom this summer.

River users have also demanded action over the spread of weed including hornwort and the oxygen weed egeria densa, both of which can trap swimmers and snare boat propellers and clog engines.

Read more