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

Lake Benmore

Control SiteScheduled date of control:Actual date of treatment:Is this site safe to swim at  today?Date site is safe to swim at from:Is this site safe to gather food from today?Date site is safe to gather food from:Is this site safe to take water for irrigation or domestic purposes today?Date site is safe to take water for irrigation or domestic purposes from:
The Neck23/02/2021TBCYesTBCYesTBCYesTBC
Ahuriri Delta23/02/202123/02/2021No24/02/2021No24/02/2021Yes24/02/2021
Ahuriri Arm23/02/2021TBCYesTBCYesTBCYesTBC

Lake Karapiro

Control SiteScheduled date of control:Actual date of treatment:Is this site safe to swim at  today?Date site is safe to swim at from:Is this site safe to gather food from today?Date site is safe to gather food from:Is this site safe to take water for irrigation or domestic purposes today?Date site is safe to take water for irrigation or domestic purposes from:
Horahora Domain18/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Lake Karapiro/Mercury Domain18/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 118/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 218/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 318/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 418/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 518/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 618/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 718/02/202118/02/2021Yes19/02/2021Yes19/02/2021Yes19/02/2021
Navigation Safety Zone 819/02/202119/02/2021No20/02/2021No20/02/2021No20/02/2021
Navigation Safety Zone 919/02/202119/02/2021No20/02/2021No20/02/2021No20/02/2021
Navigation Safety Zone 1019/02/202119/02/2021No20/02/2021No20/02/2021No20/02/2021
Navigation Safety Zone 1119/02/202119/02/2021No20/02/2021No20/02/2021No20/02/2021
Navigation Safety Zone 1219/02/202119/02/2021No20/02/2021No20/02/2021No20/02/2021
Last Updated: 23 February 2021