http://plone.urbanforestrysouth.org An International Tree Failure Database (ITFD) has been implemented by the USDA Forest Service (Forest Health Protection and U&CF Program). During the development of this database, about 200 professionals have been trained to enter tree failure reports through the ITFD website. daily 1 2007-11-20T21:37:34Z http://plone.urbanforestrysouth.org/resources/links/international-tree-failure-database-itfd "The ITFD application has an internet based form for collecting important information about trees that have failed structurally. Perhaps the most significant component of the ITFD is the output reports. When the database has received a number of data entry forms for a geographic area, reports will be generated. Over time this data will reveal the characteristics of trees that fail and improve our ability to predict future failures. No publisher matthew ITFD Leaf characteristics Structure 2007-12-07T01:22:43Z Link