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

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, or take water for irrigation or domestic purposes?
Sailors Cutting22 Feb 202422 Feb 2024Yes as of 23 February 2024
Ahuriri Delta and Arm20 Feb 202421 Feb 2024Yes as of 22 February 2024
The Neck22 Feb 202422 Feb 2024Yes as of 23 February 2024

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 Domain29 Feb 2024TBCYes - as of 9 February 2024
Mighty River Domain28 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 128 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 228 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 328 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 428 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 528 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 624 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 729 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 829 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 929 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 1029 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 1129 Feb 2024TBCYes - as of 9 February 2024
Navigation Safety Zone 1229 Feb 2024TBCYes - as of 9 February 2024

Lake Ōkāreka

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, or take water for irrigation or domestic purposes?
Southern Outlet9 Nov 2023 – 10 Nov 20239 Nov 2023Yes - as at 30 November 2023
Bird Walkway Bay9 Nov 2023 – 10 Nov 20239 Nov 2023Yes - as at 30 November 2023
Margin9 Nov 2023 – 10 Nov 20239 Nov 2023Yes - as at 30 November 2023

Lake Rotoiti

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, or take water for irrigation or domestic purposes?
Gisborne Point/Punawhakareia Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Ōkahutoroa Bay/Cherry Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Te Tī Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Otaramarae Boat Ramp8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Tapuaekura Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Tokerau Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Wairau Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023
Manupirua Bay8 Nov 2023 – 10 Dec 202310 Nov 2023Yes - as at 30 November 2023

Lake Rotorua

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, or take water for irrigation or domestic purposes?
Kawaha Point8 Nov 2023 – 10 Dec 202314, 16 and 23 Nov 2023 Yes - as at 30 November 2023
Lakefront8 Nov 2023 – 10 Dec 202314, 16 and 23 Nov 2023Yes - as at 30 November 2023

Lake Tarawera

Control siteScheduled date of controlActual date of treatmentSafe to swim at, gather food from, and/or take water for irrigation or domestic purposes?
Boatshed Bay8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Kōtukutuku Bay/The Landing8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Stoney Point8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Otumutu Lagoon8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Te Rātā Bay8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Wairua Hot Pool8 Nov 2023 – 10 Dec 202330 Nov 2023

NO - as at 30 November 2023

Yes from 1 December 2023

Last updated