Risk Based Pest Control

New Zealand’s TBfree programme
aims to eradicate bovine tuberculosis from
New Zealand by 2055 To achieve that,
TB must be eradicated
from possums, the proven maintenance host
of the disease in New Zealand. A key part of the revised TB
plan is to amend the design and implementation of TB
wild animal control
and surveillance… so that we can deliver greater
efficiencies and results
on a reduced budget. About 100 areas of New Zealand
bush and farmland have a detailed plan
for TB eradication. These TB Management Areas
have unique geography, disease patterns, and
possum control history. The TBfree programme prioritises
where possum control
will take place by concentrating work in areas
with the highest risk
of TB passing to livestock which have never been controlled
for TB purposes before where TB has been
found in wildlife where eradication can be
achieved quickly This more risk-based approach
enables TB eradication with
a reduced budget It makes financial sense
to concentrate resources
where risk is greatest To make the best pest
management decisions, OSPRI weighs up
these considerations… How many possums are there,
and how widespread is infection? What is the risk of TB
spreading to livestock? What is the urgency of
possum control to interrupt
the infection cycle? Economically,
OSPRI also considers: The cost of completing
eradication according
to the agreed timetable How possum control best
complements the livestock
TB testing programme The success of TB testing
and pest control programmes is demonstrated by reducing
numbers of infected
cattle and deer herds and by proving ‘freedom
from TB’ in wildlife. Wildlife surveys, and
ongoing testing of livestock,
confirm TB eradication work Once freedom from
disease is declared, wild animal control and
surveillance can cease
for TB purposes. This will be achieved
systematically through
the risk based approach Then New Zealand can say
“The TB-free future has arrived”

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