Current and upcoming control work

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
  • 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.

We publish tables below with detailed information about recent aquatic weed control work. You can find more information about all our biosecurity programmes on the page Biosecurity control work.

Operational spray plans

Lakeweed spraying public notification protocols

Lake Benmore

No upcoming control works currently scheduled.

Lake Dunstan

No upcoming control works currently scheduled.

Lake Karapiro

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, or take water for irrigation or domestic purposes?
Horahora Domain20 Mar 202420 Mar 2024Yes - as of 21 March 2024
Mighty River Domain28 Feb 202428 Feb 2024Yes - as of 29 February 2024
Navigation Safety Zone 328 Feb 202428 Feb 2024Yes - as of 29 February 2024
Navigation Safety Zone 428 Feb 202428 Feb 2024Yes - as of 29 February 2024
Navigation Safety Zone 528 Feb 202428 Feb 2024Yes - as of 29 February 2024
Navigation Safety Zone 620 Mar 202421 Mar 2024Yes - as of 22 March 2024
Navigation Safety Zone 720 Mar 202421 Mar 2024Yes - as of 22 March 2024
Navigation Safety Zone 920 Mar 202421 Mar 2024Yes - as of 22 March 2024
Navigation Safety Zone 1020 Mar 202421 Mar 2024Yes - as of 22 March 2024
Navigation Safety Zone 1120 Mar 202421 Mar 2024Yes - as of 22 March 2024
Navigation Safety Zone 1220 Mar 202421 Mar 2024Yes - as of 22 March 2024

Lake Wanaka

No upcoming control works currently scheduled.

Kawarau River

No upcoming control works currently scheduled.

Last updated