Killing Weeds with Steam

I understand that steam can kill weeds in a fence row or on gravel driveways. What temperature of steam could you use on a lawn to kill weeds but not the grass (Bermuda and St. Augustine)?

Hardiness Zone: 8a

Larry from Burleson, TX

Answers:

Killing Weeds with Steam

Mix some salt water up and spray weeds. They won't grow back, so only spray what you don't want! (01/21/2009)

By tammy carroll

Killing Weeds with Steam

I've used boiling water on poison oak and it killed it. (01/21/2009)

By Judi

Killing Weeds with Steam

Boiling water works GREAT for this! (01/22/2009)

By Marci