Generally speaking, the fungi are not in a situation where they are readily transmittable. So if the affected section of the log can be cut away and the rest of the log can be sprayed or something of that nature, we can minimize any risk of escape and spread. A majority of the wood coming in has been clean. But, of course, officials are concerned with the exceptions. Some of it is the good job being done by importers careful about the wood they are selecting.
Most trees receive the proper treatments to be imported.
Some companies do their own inspection to make doubly sure there is nothing on the wood to be concerned about. The two sap stain fungi we found on the New Zealand logs are related to the Dutch elm disease fungus. So they can be insect transmitted. We are fortunate they came in during the winter. Our native insects weren't active, and didn't pick up the fungi and carry them off.