>>Walnut leaf smoke has been tried:
http://www.sare.org/reporting/report_viewer.asp?pn=FNE03-485&ry=2004&rf=1



Sounds promising.  My only reservation is: are there any contaminants released when burning walnut leaves?  I now from experience it's hard to grow anything under / next to walnut trees unless the fallen leaves are raked and removed promptly.

Waldemar

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