Protecting a Forest From Incurable Disease: Disease prevention in the Jarrah forests of Western Australia
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A microscopic, soil-borne fungus has been gradually spreading through the Jarrah forest of W.A. for most of this century. On some sites this fungus can cause almost total forest destruction. Infection is incurable and the effects are irreversible. This paper develops a means for evaluating disease control measures and identifying the optimal level of protection. Standard protection measures are warranted for high and moderate impact sites, over a wide range of risks. Increased expenditure on forest protection is warranted for high and moderate impact sites at especially high risk.