saut

I've been fixing up my family's patio for the past couple of weeks. One thing that I just can't seem to take care of is the weeds, though. They are everywhere, growing out of the cracks between the rocks. I've tried lots of things in past years to kill them, Roundup and all that good stuff, but nothing seems to work very long. Right now my best method of weed removal is the weedwhacker, which is a real pain in the ass because it's a pretty sizable patio and the weeds are fucking resiliant. I'm looking at it out the window right now and I can see that the weeds I whacked out of existance two days ago are already back in full swing. What has everyone had success with? I want to destroy these weeds, whatever it takes. I'm not worried about killing any other plants nearby except for the grass that borders it (on two sides only though). Ideally, I'd get my hands on some Agent Orange, but my Vietnamese neighbors might start to get a little nervous!