Publications du Service canadien des forêts

Flétrissement du chêne. Fewster; V.; MacQuarrie; C.J.K.; Fidgen; J.G. 2021.Ressources naturelles Canada, Service canadien des forêts. Centre de foresterie des Grands Lacs, Sault Ste. Marie (Ontario). Nouvelles Express 90. 2p.

Année : 2021

Disponible au : Centre de foresterie des Grands Lacs

Numéro de catalogue : 40398

La langue : Français

Séries : Nouvelles express (CFGL - Sault Ste. Marie)

Disponibilité : PDF (télécharger)

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Résumé en langage clair et simple

Oak wilt is a tree disease caused by the fungus Bretziella fagacearum. The fungus is widespread throughout the eastern United States and, as of 2021, found within 600 m of the Canadian border near Windsor, Ontario. The fungus clogs the vascular system of the tree, causing mortality within 1 year in red oaks, and in 2-15 years in white oaks. Infected trees also produce pressure pads where beetles can pick up fungal spores and move the fungus to new stands. Within stands, infections can also be transmitted by root grafting. This publication describes the biology, impact and management options for oak wilt.