Are Norway Maples known to be allelopathic to any particular plants?

Reply to post by MBurke, on June 23, 1999 at 16:17:35:

Not in the true sense, secretion of growth retartdents, but the dense canopy of large thick leaves decreases the light enough that many things will not grow, esp, turf.

Reply to post by MBurke, on June 23, 1999 at 16:17:35:

The recent issue of Arborist News (ISA, June 1999, Vol. 8, No. 3, page 53) has an article by Dr. Kim Coder on allelopathy in trees. A chart provided suggests Norway maple has moderate effects, via roots and leaves. The article discusses pathways, chemicals, and degree of effects.

Reply to post by Russ Carlson, on June 23, 1999 at 16:17:35:

There I go again!!

Reply to post by JPS , on June 29, 1999 at 21:59:00:

I think your comment was at least partially right, John. Competition is keen for root space beneath a Norway maple. I'm not too sure about shade, but it probably does contribute. There are plants that grow in very heavy shade, that don't make it under Norways, for whatever reason.

Reply to post by Johnn S, on June 23, 1999 at 16:17:35:


John S. makesan excellent point.

Here are some factoids that I found:

http://theboss.kern.com/scripts/webboard.dll/read5231/f17