Emerald Ash Borer

We at Tree Doctors are trying to spread awareness of a severe infestation endangering all ash trees in the greater Toronto area. The Emerald Ash Borer (EAB) has recently been detected in the City of Toronto and is an invading pest from Asia that attacks and kills all species of ash trees.

All ash trees in Toronto are at risk of dying from this infestation. Mortality may occur in as short a period as one year, however, death normally occurs within 2-3 years of a tree becoming infested. The recent tree canopy study estimates that there are 860,000 ash trees in total on public and private lands in Toronto. EAB has now spread throughout Toronto, killing most ash trees in the City in 2015 – 2017.

Quarantine is established around Toronto and most of southern and southwestern Ontario. There are new prohibitions and restrictions of movement on nursery stock, trees, leaves, logs, lumber, wood, wood chips and bark chips from all ash species and for firewood of all species. Call us to inquire about these restrictions.