Dear Zed: I think it was in the fifties, that Daniel Keith Ludwig, who was then the richest man in US, got interest in developing a source of paper pulp wood. He got a huge tract of land in Brazil, not far from mouth of Amazon. He had a papermill built of a huge barge in Japan and towed across the Pacific. But the expert he had advising him talked him into limiting trees planted after clearing rain forest to only two varieties. All the other experts predicted that such monoculture would invite disease to wipe out the project. Apparently it did. I've never been able to learn the details, but the whole multibillion dollar project went down the drain. If eucalyptus is suitable for paper production, a shame he didn't try it. I am still trying to find out details about the failure of the project.