Wollemia nobilis (Wollemi Pine) - Biosecurity New Zealand
Wollemia nobilis (Wollemi Pine) - Biosecurity New Zealand
Wollemia nobilis (Wollemi Pine) - Biosecurity New Zealand
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plants and rootless cuttings imported from Australia is non-negligible and it is considered a<br />
hazard.<br />
The likelihood that new Botryosphaeria species would be associated with <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong><br />
plant in vitro is considered negligible, and as such on this pathway Botryosphaeria species<br />
are not considered a hazard.<br />
11.2.9 Assessment of Uncertainty<br />
The subject of this assessment is a group of fungi that could potentially have a very wide<br />
variety of biological and epidemiological characteristics. To accommodate as far as possible<br />
these significant uncertainties the assessment has been undertaken at a relatively generic<br />
level, focusing on general attributes of the representative fungal species included in the<br />
assessment. Given the uncertainties around what are considered species complexes of the<br />
more widely distributed Botryosphaeria species, the potential hazards should be considered<br />
for all representatives of the Botryosphaeria including those otherwise considered established<br />
in <strong>New</strong> <strong>Zealand</strong>.<br />
To ensure that the risk management measures resulting from this assessment remain<br />
appropriate to the risk posed by the pathway, organism associations recorded with the<br />
commodity in the place of origin and during import into <strong>New</strong> <strong>Zealand</strong> or other countries<br />
should be monitored.<br />
11.3 Risk Management<br />
11.3.1 Risk Evaluation<br />
The risk estimate for Botryosphaeria species associated with <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong> whole plants<br />
and root-less cuttings imported from Australia is considered non-negligible. Phytosanitary<br />
measures may need to be employed to effectively manage the risks to reduce them to an<br />
acceptable level.<br />
The risk estimate for Botryosphaeria species associated with <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong> plants in vitro<br />
imported from Australia is negligible and as such phytosanitary measures will not be<br />
required.<br />
11.3.2 Option Evaluation<br />
11.3.2.1 Risk Management Objective<br />
To ensure any Botryosphaeria species associated with <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong> nursery stock in<br />
Australia are neither:<br />
o transplanted into the <strong>New</strong> <strong>Zealand</strong> environment with <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong> nursery stock<br />
imported from Australia; or<br />
o transmitted to a host plant in the <strong>New</strong> <strong>Zealand</strong> environment from <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong><br />
nursery stock imported from Australia.<br />
Import Risk Analysis: <strong><strong>Wollemi</strong>a</strong> <strong>nobilis</strong> (<strong>Wollemi</strong> <strong>Pine</strong>) Araucariaceae Nursery Stock from Australia 14 March 2008 Page 109 of 193