CULT: Allelopathic Walnuts.


> Last Fall's leaves.  Raking under the walnut tree reminded me that I have
a question for you out there.  I  need another opinion.  At our February
Iris Club meeting we had a
> speaker who told us that you should never put walnut leaves in the
> compost pile.  Guess they are supposed to be toxic to plants.  

Lorraine,
     Get rid of those Walnut Leaves.  They contain Jugalone, which is
allelopathic to many other plants.  Allelopathic means that it is harmful,
and can be fatal to some other plant species.  Tomatoes are especially
sensitive to Jugalone.  I am not certain how sensitive Irises are to
Jugalone, but I would not recommend taking a chance.  

Mark A. Cook
billc@atlantic.net
Dunnellon, FL.  



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