I use a propane torch with a Red Dragon wand to keep the weeds off the
decomposed granite in 5-6 places that have these paths.

http://www.flameengineering.com/

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Celestial Habitats by J. Kolenovsky
2003 Honorable Mention Award, Keep Houston Beautiful
=F4=BF=F4 - http://www.celestialhabitats.com - business
=F4=BF=F4 - http://www.hal-pc.org/~garden/personal.html - personal