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A comment on The Devil's Hair Dryer: Hell is other people, with leaf blowers (2016). Parent comment

Re:The Devil's Hair Dryer: Hell is other people, with leaf b... by yesenadam on Sunday November 25, 2018 @04:17PM (#18529100)
Wow, thank you, I had no idea. The walnut tree uses the poison to kill competitors, up to 20m away or more.

Black Walnut: The Killer Tree https://www.extension.iastate.edu/news/2005/jul/070701.htm

https://en.wikipedia.org/wiki/Juglone

"Juglone is occasionally used as a herbicide. Traditionally, ...has been used as a natural dye for clothing and fabrics...and as ink. ...has also found use as a coloring agent for foods and...hair dyes. ...is currently being studied for its anticancer properties"

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Re:The Devil's Hair Dryer: Hell is other people, with leaf b... by pvaldes on Sunday November 25, 2018 @06:42PM (#18529827)
And is not only the walnut, a lot of common trees do this in fact. Pines for example.
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