08/06/2026
Oak wilt is a vascular disease of oak trees (Quercus spp.) that is caused by the invasive fungal pathogen π΅πππ‘π§πππππ πππππππππ’π. The fungus is spread both below-ground via root grafting from infected to healthy trees and above-ground by means of fungal spore spreading by Nitidulid beetles or bark beetles. π΅πππ‘π§πππππ πππππππππ’π is believed to have been present in North America since the early 1900βs and has since been confirmed in 24 U.S. states. In 2023, it was detected for the first time in Canada, on private property in the city of Niagara Falls.
To learn more about the economic impact of oak wilt on Canadian municipalities and get tips on how to best prepare your community, please visit our Oak Wilt Economic Case Study article through the following link πhttps://bit.ly/3TVB15v