Eradicating bovine TB in NZ

As part of our TBfree programme we deliver our pest control operations through a framework of TB management areas (TMAs). TMAs are areas with known TB infection in livestock and wildlife. Each TMA has a specific TB control plan designed to eradicate TB as effectively as possible.

Grey West TMA

The Grey West TMA covers 42,560 ha west of the Grey River backing on to the southern Paparoa Range. The area includes public conservation land, privately owned bush blocks and exotic forest at Craigieburn.

The habitat includes plains and river terraces with narrow strips of farmland bordered by mountain ranges with mature beech forest and scrub. Altitudes range from 100 metres to 1300 metres.

History of TB and pest control in Grey West

The Grey West TMA has long history of TB infection. Grey West is sparsely populated by cattle herds and several of these herds have been found to be infected with TB in recent times. The most recent TB infected cattle herd was found in 2013.

We completed:

  • ground-based possum control in 2015/2016 in the Grey Valley north block
  • aerial possum control in:
    • 2011 in the Hukarere block, and
    • 2015 in the Rough River block.

Current state

There are currently no infected herds in the Grey West TMA.

If you're moving animals

The Grey West TMA is in the West Coast Movement Control Area (MCA). Before you move cattle or deer to another herd or farm, you must have them tested for bovine TB.

Future pest control operations

We plan our pest control operations up to 3 years in advance. The current year runs from July 2021 to June 2022.

Dates and control methods for pest control operations in Grey West are provisional and subject to change. If you’re affected by any upcoming operations, our pest control contractors will contact you before work begins. They will:

  • talk you through the specifics of each operation
  • explain what you need to do before the operations start
  • get your consent for the work to be done.
Type of controlWhenCoverageWhere
Ground control2021/202213,500haGrey Valley West
Aerial control2021/20228,200ahAtarau


Vector Control Services manage eradication activities in the Grey West TMA. Contact them directly if you have feedback or questions about upcoming operations.

Vector Control Services
Phone: 0508 141 268

Your nearest local OSPRI office is in Christchurch.

OSPRI Christchurch Office
PO Box 8674
Christchurch 8440
Phone: 03 363 3090