Clarence Reserve

The Clarence Reserve is located in North Canterbury between the Inland and Seaward Kaikoura ranges. It is an area of known TB infection in wildlife species and home to a long standing TB-infected cattle herd.

The Clarence Reserve has been identified as a TB management area (TMA) and is the focus of a nine-year TB management plan that began in summer 2017. The pest control stream of the plan targets possums to achieve TB freedom in both livestock and possums.


  • TB freedom in livestock by 2023
  • TB freedom in possums by 2026
  • TB freedom in the Clarence Reserve TMA by 2026

Current Operational Progress

Operation Hectares Status as at 1/4/2019 Further information

Ground Control - Quail and Goose Flats



Completed – October 2018


Aerial - Clarence West, Waiautoa, Kekerengu


Planned May 2019 – consultation underway

2019 TBfree Pest Control Operations Consultation

Clarence Reserve TMA Notice 2018/2019

Clarence West Operational Notice

Ground Control - Clarence West, Kekerengu, Upper Clarence


Planned Jan-May 2019

Clarence Reserve TMA Notice 2018/2019

Ground Control - Clarence West, Kekerengu, Quail and Goose Flats, Upper Clarence


Planned Jan-May 2021

Clarence Reserve TMA Notice 2018/2019

Aerial - Central Clarence


Planned 2021


Aerial - Constitution Hill


Planned 2021


Ground Control - Clarence West, Clarence East, Kekerengu, Upper Clarence, Quail and Goose Flats


Proposed Jan-May 2022


Clarence Reserve Operations Map (Full screen)
Clarence Reserve Map update


The objectives of the TBfree programme include achieving TB freedom in livestock by 2026, in possums by 2040 and eradication of TB from all hosts across New Zealand by 2055. These goals will be delivered through a framework of TB Management Areas (TMAs) – areas of common disease patterns, geographical features, control history, and future control needs.

The Clarence Reserve, identified on the map above, is a TMA and an area of known TB infection in livestock and wildlife. This has been confirmed through the identification of TB in possums, deer, pigs and ferrets and farmed cattle.

The Clarence Reserve TMA will be subject to a focused programme that includes ground-based and aerial pest control activities and wildlife surveillance.

TB Freedom in the Clarence Reserve

Pest Control Programme

The TBfree programme aims to achieve TB freedom in possums in the Clarence Reserve TMA by 2026. For information on operational activities, follow the links below:

Disease Management Programme

Our disease team are working directly with infected herd owners to achieve TB freedom in livestock by 2023.

Information for Hunters

Warning signs will be placed at all main access points to aerial pest control areas undertaken as part of the Clarence Reserve TB programme. All land users, including hunters, must follow the cautions on these signs.

Individual aerial pest control operations will have an associated TB control operation notice – these notices provide instructions to ensure the safety of land users within pest control areas. These notices can be found under the ‘TB freedom in the Clarence Reserve’ heading above.

For further information on access permissions and permits required to hunt in the Clarence Reserve you will need to contact the Department of Conservation South Marlborough Area office and the owners of private property or lease hold in the area.


TB Management Area factsheets available here. Factsheets on various aspects of TBfree programme activities include:


Byrom A, Nugent G, Yockney I, Poutu N, Whitford J, McKenzie J, Shepherd J, Porphyre T 2007. (R-80629) Cost-effective control of Tb in the Northern South Island High Country (NSIHC): Identifying the habitats and vector species requiring control. LC0708/033. 85p. Read it here.

Porphyre, T., McKenzie, J., Byrom, A. E., Nugent, G., Shepherd, J., & Yockney, I. (2014). Spatial prediction of brushtail possum (Trichosurus vulpecula) distribution using a combination of remotely sensed and field-observed environmental data. Wildlife Research, 40(7), 578-587. Read it here.

Nugent, G.; Whitford, J. Yockney, I.J.; Cross, M.L. 2012. Reduced spillover transmission of Mycobacterium bovis to feral pigs (Sus scrofa) in New Zealand following population control of brushtail possums (Trichosurus vulpecula). Epidemiology and Infection 140: 1036–1047. Read it here.

Nugent, G.; Whitford, J. 2008. Animal Health Board Project No. R-10652 Relative Utility of Tb Hosts as Sentinels for Detecting Tb. Landcare Research Contract Report: LC0708/032. 38 Read it here.