Weed whacking is working
A $320,000 clean up of noxious week choking Lake Wanaka waterways is proving to be effective. A control programme being is carried out by a lagarosiphon management committee, led by Land Information New Zealand, to remove the weed. The weed chokes waterways, smothers native aquatic plant communities and establishes itself quickly if left untreated. Land Information Minister Maurice Williamson said the control work has been ‘‘so effective’’ that there’s now improved access to many parts of the lake – such as Paddock Bay and Bishops Bay, which were previously restricted by dense weed beds. The management committee have recommended the containment line be moved further south to extend from the southern tip of The Peninsula to the very southern end of Bishops Bay. ‘‘Moving the containment line south means lagarosiphon is being effectively controlled in a large part of Lake Wanaka and weed control efforts can be directed to areas more heavily used for recreation closer to Wanaka Township,’’ Mr Williamson said. LINZ Crown Property Management acting manager John Hook said it will be spending $300,000 on control works, with a contribution of $20,000 from Queenstown Lakes District Council. ‘‘As lagarosiphon infestations are reduced the available budget is reallocated to other priority areas, now particularly in the southern part of the lake,’’ Mr Hook said.
Water weeded: A $320,000 control programme to remove the pest weed lagarosiphon from Lake Wanaka is proving to be effective.