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walnut wood

  • To: Multiple recipients of list <iris-l@rt66.com>
  • Subject: walnut wood
  • From: "Michael Cook" <macook@iglou.com>
  • Date: Wed, 26 Feb 1997 11:33:53 -0700 (MST)

Dear Robins, 
     Lloyd is correct saying that it may be dangerous to use walnut sawdust
in the garden.  Walnut trees contain a chemical called Jugalone, which
inhibits the growth of many plant species.  Putting walnut shavings in the
garden would be the kiss of death for some plants.  Also, I would not
recommend using sycamore leaves as mulch because they also exude
allelopathic compounds.  

Mark A. Cook

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