Growing and spreading rapidly in even the poorest soils and with little water, tree of heaven is, despite its name, the very definition of "weed tree." It can cause allergies and irritate the skin, ...

When early gardeners first brought tree of heaven to the United States, the country itself was less than a decade old. In the hundreds of years since, this ornamental tree has spread itself far and ...

(Beyond Pesticides, December 22, 2021) A promising new biocontrol agent for the tree of heaven (Ailanthus altissima)—considered an invasive species in the U.S. and Europe by some—was recently ...

Tree of heaven, a noxious weed and invasive tree, is making an indelible mark on the Pacific Northwest — and confounding the officials attempting to control its spread. “Something is definitely ...

The Tree of Heaven (TOH) may appear to most as just another pretty tree. With airy frond-like leaves and large bunches of flowers visible on some in the Spring, the tree has become a common site in ...

RAPHINE — The kudzu of the tree world could one day be controlled by a fungus. Project name: Potential biological control of the invasive Ailanthus altissima (tree of heaven) in Virginia using ...

Tree of heaven, a noxious weed and invasive tree, is making an indelible mark on the Pacific Northwest — and confounding the officials attempting to control its spread. “Something is definitely ...