Find out about current and upcoming weed and pest control work

Effective pest management depends on collaboration. We consult with a range of interested groups when planning control programmes, including neighbouring landowners, district and regional councils, iwi, advocacy groups, and the local community.

Before undertaking any control work, we notify the public by:

  • putting up signs near the affected area
  • publishing notices in local newspapers
  • broadcasting notices local radio
  • posting information on this website.

Most of our control work is weather dependent, so advertised dates may change at short notice. We try to avoid carrying out any spraying on weekends or during public holidays.

The table below provides detailed information about our aquatic weed control work. You can find more information about all our biosecurity programmes in the related content.

Aquatic weed control status for lakes in New Zealand as at 4 September 2018

Control SiteScheduled date of control:Is this site safe to use today?Treatment was completed on:The site is safe to use from:
Lake Benmore    
Ahuriri Delta15-Jun-18Y15-Jun-1816-Jun-18
Ahuriri Arm15-Jun-18Y15-Jun-1816-Jun-18
Ahuriri Neck15-Jun-18Y15-Jun-1816-Jun-18
Lake Dunstan    
Champagne Gully - Ramp and Ski Lane 10-Sep-18N10-Sep-1811-Sep-18
Jackson's 10-Sep-18N10-Sep-1811-Sep-18
Old Cromwell Town and Boat Rampsn/aYn/an/a
South of Brewery Creek10-Sep-18N10-Sep-1811-Sep-18
Weatherall Creek and Burton Creek10-Sep-18N10-Sep-1811-Sep-18
Lake Wanaka    
Roys Bay16-May-18Y16-May-1817-May-18
Paddock Bay16-May-18Y16-May-1817-May-18
Parkins Bay18-May-18Y18-May-1819-May-18
Stevensons Island16-May-18Y16-May-1817-May-18
Glendhu Bluffs18-May-18Y18-May-1819-May-18
Glendhu Bay18-May-18Y18-May-1819-May-18
Kawarau River    
Upstream of the Shotover River confluence17-May-18Y17-May-1818-May-18
Last Updated: 10 September 2018