City tree inspectors annually inspect oak trees throughout Eden Prairie to identify trees with oak wilt.
Oak wilt is caused by a pathogenic systemic fungus (Ceratocystis fagacearum). This fungus can infect all oak species in Minnesota, but is particularly deadly to the red oak group of species. Tree inspectors mark trees for removal by the property owner to decrease the number of fungal spores emitted into the environment, potentially infesting other nearby oaks. White oaks are monitored for oak wilt and are marked for removal on a case-by-case basis.
Property owners with infected red oak trees are mailed a written notice outlining the process to properly dispose of the tree within City guidelines. Diseased trees must be removed by the date specified in the notification. The debris from these trees often qualify for the City's free hauling and disposal program; the criteria to qualify for this service is outlined in the removal notice sent to the property owner.