Fighting invasive tree-of-heaven

This summer, I’ve been battling tree-of-heaven (Ailanthus altissima) like never before. We’ve written before about this struggle, but I’ve never seen it keep coming back so aggressively from the root – till now. Ailanthus is an alien species (read more about it in our previous post), that has become a regular citizen of Toronto’s unguarded laneways and unclaimed […]

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