Another 'usefull' rot is what forms the incense Agarwood, popular in arab and asian culture, where a certain type of forrest/jungle tree is infected and, after

Another 'usefull' rot is what forms the incense Agarwood, popular in arab and asian culture, where a certain type of forrest/jungle tree is infected and, after 50yrs, results in the highly sought after perfume that can run you in the tens of thousands $ per kg.