On 06 May 2005 09:14:36 +1300, "Loki" wrote:


Just what is juglones?

"Many members of the walnut family (Juglandaceae) produce in their
tissues a chemical called Juglone. Production is highest in black
walnut (Juglans nigra) and butternut (Juglans cinerea), with members
of the genus Carya producing minimal amounts. Juglone is an
allelopathic substance, meaning it affects the growth of other plants.
Susceptible plants growing in close proximity to black walnut or
butternut may suffer growth stunting, wilt ("walnut wilt") and death."

http://www.hort.uconn.edu/plants/hel...ne/juglone.htm