What trees/plants produce Juglone, aside from Black Walnut?

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laura10801 Fairfield County, CT(Zone 6b) Apr 06, 2010

Juglone is a toxic substance produced by Black Walnut trees in the soil to kill off competitive plants. Other trees produce Juglone, but I have not been able to find a list of them. A couple of years ago a horticulturist told me I have trees which are producing Juglone, but I have forgotten which ones he identified as the culprits. I have no way of contacting the guy again, and it would be very helpful to have a full list of producers so I know what I can and cannot plant around my trees.

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themoonhowl Prairieville, LA(Zone 9a) Apr 06, 2010

Here is some info for you.
http://www.cirrusimage.com/trees_Juglandaceae.htm

http://botany.csdl.tamu.edu/FLORA/Wilson/tfp/ham/jugpage2.htm

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altagardener Calgary, AB(Zone 3b) Apr 07, 2010

This may help.
http://en.wikipedia.org/wiki/Juglone
http://en.wikipedia.org/wiki/Juglandaceae

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laura10801 Fairfield County, CT(Zone 6b) Apr 08, 2010

Thanks

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themoonhowl Prairieville, LA(Zone 9a) Apr 09, 2010

You are welcome Laura, hope the links gave you the info you needed.

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