ERADICATING BOVINE TB FROM TASMAN - OSPRI
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ERADICATING
BOVINE TB FROM
TASMAN
SEPTEMBER 2018 | VERSION 2.0
TB MANAGEMENT
AREAS
TMA Boundary
The TBfree programme aims to
control and eventually eradicate
bovine tuberculosis (TB) from
New Zealand by 2055.
We use possum control, along with
regular herd testing and movement
restrictions, to achieve this objective.
Information gathered from wild animal
surveys, recent and historic findings
of TB in wild animals, herd testing
results and the operational history
of the region is used when planning
operations.
The TBfree programme is delivered
through TB management areas
(TMAs). These areas were created
based on the likely or possible
presence of TB in wildlife, similar
habitat features, known disease
patterns, geography and control
history. Each TMA has a specific
TB control plan designed to eradicate
TB as effectively as possible.
A TMA is made up of one or more
Vector Control Zones (VCZs) within
which possum control or wildlife
survey operations may be carried
out from year to year, depending
on wild animals present, habitat, provided are provisional and subject including the Motueka River
progress toward TB eradication to consultation. catchment and Mt Arthur range.
and available funding. The habitat type is farmland rising
This notice provides an overview of TB
control work planned for the Tasman TASMAN to steep hills covered with bush,
plantation forests and areas of
TMA. It is not a formal notice of any The Tasman TMA covers 86,697 ha scrub. Altitudes range from sea
specific operation. All operation dates east of Kahurangi National Park, level to 1800m.
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
TASMAN Mt Arthur, North Motueka, South
Motueka and Pinchback areas during
• TB freedom in the Tasman TMA
by 2020.
TB HISTORY 2016/2017.
These goals are ahead of the national
The Tasman TMA has a long history Aerial possum control has previously objectives of TB freedom in livestock
of TB infection. TB has been found by 2026, and TB freedom in possums
been undertaken in 2014 in the Mt
in wild pig populations dating back by 2040. We aim to have eradicated
Arthur block covering approximately
to the early 2000s. TB has also been TB from New Zealand by 2055.
20,000 ha. The North Motueka Valley
found in a fallow deer within the TMA
block over 23,000 ha and the South
in 2013 and an infected herd found
in the same year. Motueka Valley block over 7,000 ha TARGETING
POSSUMS
were completed in 2013.
TB testing of farmed deer and
cattle provides evidence that local
possum control has been effective at ERADICATION To eradicate bovine TB from possum
populations, possum numbers need
reducing the level of TB on farmed
properties. Kahurangi National Park
GOALS to be kept extremely low – around
one to two animals every ten hectares.
and associated possum habitat was OSPRI’s main goals for TB control
the initial source of TB to this TMA in the Tasman area are: Previous possum control and livestock
and remains the greatest risk for disease management has dramatically
• Maintain TB freedom in livestock
the disease to re-establish. Because reduced the number of infected herds
of this risk future control and • TB freedom in possums by 2020 in the Tasman TMA.
surveillance surveys are necessary
to prove that TB freedom has been
achieved throughout the TMA. OPERATIONAL TIMEFRAME
Planned control and surveillance management activities
CONTROL are outlined in the table below.
HISTORY TYPE OF WHEN?* HOW MANY WHERE?
Ground based possum control has CONTROL HECTARES?
been undertaken almost annually Pig Survey 2018/2019 87,000 Mid Motueka Valley,
since 2007 in the Mid-Motueka Valley, Ngatimoti, North Motueka
Ngatimoti, North Motueka Valley, Valley, Mt Arthur, Pinchback,
Pinchback and the South Motueka South Motueka Valley
Valley areas. In 2015, Mid-Motueka Pig Survey 2019/2020 87,000 Mid Motueka Valley,
Valley, North Motueka Valley and Ngatimoti, North Motueka
South Motueka Valley were completed Valley, Mt Arthur, Pinchback,
and in 2013, Ngatimoti and Pinchback South Motueka Valley
were completed.
Hectares under control are indicative only and may change after consultation.
Pig surveys over 70,000 ha were * The operational year runs from 1 July – 30 June
completed in the Mid Motueka,
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
2018/19 OPERATIONS
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
PIG SURVEY from the Department of Conservation
and Ministry of Health. TESTING HERDS
Before an area can be classed as TB- Cattle and deer herds are monitored
THE METHOD
free, surveys are used to assess if TB for TB through a combination of herd
is still present in wildlife. While testing and carcass inspection at
possums are the main source of PIG SURVEY slaughter. The frequency of testing
infection from wildlife it can be depends on the herd’s location,
difficult and costly to detect TB in Our contractors will collect wild pigs management and TB history.
possum populations. Pigs are good for disease surveillance, using one To check the testing frequency for
indicators of TB in possums because of three proven methods. Pigs may your property visit ospri.co.nz/dcamap
they scavenge widely, so are likely be ground hunted, trapped or shot
from helicopters for post-mortem
to get TB from eating TB-infected
possum carcasses. They can’t maintain
examination. In some areas, a Judas WHAT NEXT?
Pig operation may be used: a wild Dates and control methods for the
TB within their own population, so
pig, ear-tagged with a transmitter, proposed operations are provisional
if they are infected, it means it’s from
will lead hunters to other pigs. and subject to consultation. OSPRI
another species. Pig survey results will
A selection of those pigs can be contractors will be in contact with
help us to tell if TB is still in the area
shot and checked for the presence affected landowners and occupiers
and whether further possum control
of TB. Another method, Sentinel Pig before any work commences.
work needs to be done.
surveillance, involves releasing an
ear-tagged, disease-free pig into an
CONSULTATION area to scavenge local wildlife that
OSPRI aims to ensure that may be carrying TB. The pig is later
communities, land occupiers and recovered and examined to check
land users are notified of planned for TB infection.
operations well in advance and have CONTACT
the opportunity to submit feedback POSSUM DETAILS
POPULATION
about any possible risks or sensitive
areas that need to be managed.
OSPRI Christchurch office
OSPRI will always seek the willing ASSSESSMENT PO Box 8674
cooperation of land occupiers when Before control work is carried out an Riccarton
TBfree programme work needs to assessment of the wildlife population Christchurch 8440
be carried out on their land. may be undertaken. P 03 363 3090
E vectornsi@ospri.co.nz
Before any operations begin, affected Following control work, the possum ospri.co.nz
landowners and occupiers will be population density may also be
contacted and visited by one of monitored to assess the operation’s Supplejack Contracting Limited
our contractors. Depending on the success. From the results, we’ll be P 06 378 8414
methods used and the location of the able to tell if further possum control E mal@supplejackcontracting.co.nz
operations, consents may be required work needs to be done in the area.
TBfree is an OSPRI programme ospri.co.nz 0800 482 463You can also read
