It is almost impossible to treat Dutch elm disease once symptoms can be observed. However, it can be avoided by treating the specimens of interest preventively and the vaccine can last up to 3 years.
The Arbotect® product is a fungicide that protects trees against infection by bark beetles carrying the fungus. The treatment is administrated by macro-infusion of several liters of water containing the concentrate fungicide. Arbotect has been used for over 30 years, including the City of Québec, in the protection of the finest specimens of American elms. Our company is the only one to offer this treatment in Quebec.