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Locating and managing tree of heaven is a key aspect of dealing with spotted lanternfly and reducing the impacts of this invader in North America.

A tomato plant growing from a dish rag on the basement floor; based on this discovery, I give the rest of the non-extinct biosphere about six months for a sixty percent recovery after humans end their...

(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 discovered by French-based scientists at the U.S. Department of Agriculture. The finding centers on a small mite of the Eriophyidae family, Aculus mosoniensis, which has been found to feed on tree of heaven. The finding is encouraging for the future management of this species in conjuction with balanced ecosystems. “In Europe, this Eriophyid mite is considered one of the most promising biological control agents of tree-of-heaven,” said Javid Kashefi, senior support scientist at the European Biological Control Laboratory (EBCL) in France. “This finding provides encouraging evidence that the geographic occurrence of this species is expanding in the continent.” Tree of heaven is a fast-growing deciduous tree native to Asia that has spread throughout Europe and North America. First introduced in the 1700s as a shade tree, it was appreciated for its quick growing ability and low propensity for insect damage, but quickly became problematic. Researchers identify five traits that warrant its classification as ‘invasive,’ including its ability to tolerate extreme environmental conditions, produce hundreds of alleopathic compounds (which harm, or inhibit the […]

from the album Caveman Wakes Up