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 27 November 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 Karapiro    
Lake Karapiro/Mercury Domain (Navigation Safety Zones 3, 5, 6)10-Dec-18Y10-Dec-1811-Dec-18
Horahora Domain (Navigation Safety Zone 9) 10-Dec-18Y10-Dec-1811-Dec-18
Little Waipa Reserve (Navigation Safety Zone 12) 11-Dec-18Y11-Dec-1812-Dec-18
Lake Okareka    
Acacia Bay19-Nov-18Y19-Nov-1820-Nov-18
Lake Okataina    
Tauranganui Bay/Public Boat Ramp19-Nov-18Y19-Nov-1820-Nov-18
Lake Rotoehu    
Otautu Bay23-Nov-18Y23-Nov-1824-Nov-18
Lake Rotoiti    
Gisborne Point22-Nov-18Y22-Nov-1823-Nov-18
Okawa Bay22-Nov-18Y22-Nov-1823-Nov-18
Otaramarae Boat Ramp22-Nov-18Y22-Nov-1823-Nov-18
Okere Inlet22-Nov-18Y22-Nov-1823-Nov-18
Kakaho Bay22-Nov-18Y22-Nov-1823-Nov-18
Wairau Bay22-Nov-18Y22-Nov-1823-Nov-18
Lake Rotorua    
Kawaha Point20-Nov-18Y20-Nov-1821-Nov-18
Lake Tarawera    
Boat Shed Bay23-Nov-18Y23-Nov-1824-Nov-18
Kōtukutuku Bay/The Landing23-Nov-18Y23-Nov-1824-Nov-18
Stoney Point23-Nov-18Y23-Nov-1824-Nov-18
Otumutu Lagoon/Humphries Bay23-Nov-18Y23-Nov-1824-Nov-18
Last Updated: 12 December 2018