Jonathan M. Greenberg
jongreen at BLUEMARBLE.NET
Wed Nov 12 22:58:03 EST 1997
That's right. They produce a phenolic compound called juglone that seems to
>>Under our Wallnut trees (Juglans regia) I find there is no moss growing
>>amongst the cobbles until outside the leaf-drip zone where a healthy carp=
>>of moss has grown.
>>Is this a well known fact, if so what is the explanation. Otherwise, wha=
>>do you think? Are there inhibitory chemicals in the water dripping off
>Some plants excrete inhibitory chemicals into the soil around them, in an
>attempt to reduce competition. Walnuts are famous for this. This phenomenon
>is termed allelopathy.
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