Public notice: Broadleaf weed treatment

Published on 02 September 2026

Whangārei District Council advises that broadleaf weed control treatments will be taking place at selected parks, reserves and playgrounds throughout September and October 2026.

Treatment of Onehunga weed and other broadleaf weeds is scheduled for the following parks and public reserves:

Pūtahi Park
The Hātea Loop and Town Basin
Reyburn House
Art Park
Hihiaua
The Canopy Bridge
Riverside parks and berms
Destination Playground
William Fraser Park
Laurie Hall Park
Cafler Park
Hātea Carpark
Eliott Reserve
Pocket Park
Bascule Park.

Treatment of Onehunga weed and other broadleaf weeds is scheduled for the following sports fields:

Barge Park Showgrounds
Kensington Sports Park
Tikipunga Sports Park
Otangarei Sports Park
Kamo Sports Park
Koropupu Sports Park
Hikurangi Sports Park
Mangakahia Sports Park
Maungakaramea Sports Park
Portland Sports Park
Takahiwai Sports Park
Ruakākā Recreation Reserve
Otaika Sports Park
William Fraser Sports Park
Hora Hora Sports Park
Morningside Sports Park
Cobham Oval
Onerahi Airport Sports Park
Onerahi Domain Sports Park
Ngunguru Sports Park.

Treatment of Onehunga weed and other broadleaf weeds is scheduled for public reserves in the following coastal areas:

Bland Bay
Whangaruru and Ōakura
Helena Bay and Teal Bay
Ngunguru and the Tūtūkākā Coast
Pātaua North and Pātaua South.

To minimise disruption to the public, treatment work in the Town Basin and CBD areas will be carried out during the evening where possible.

Please follow all signage and temporary notices placed at treatment sites and only enter areas when signage indicates it is safe to do so.

If you are visiting a treated area:

Keep dogs on a lead and away from treatment areas.
Supervise children and prevent them from entering areas where treatment is underway.
Be aware that some treated areas may have a temporary fish-like smell. This comes from an additive used to help the treatment work more effectively and dry more quickly.

These treatments help maintain healthy, safe parks and reserves for everyone to enjoy throughout the summer months.

Weather conditions may affect the treatment schedule, and some work may be postponed if rain is forecast.