This stuff is cheap*, effective, and works fast. It could be the new Roundup [TM], though it does not necessarily kill the roots of a weed. I find it is just as effective as the high priced brand, and it does not require a thousand words of warnings, nor leave harmful by-products.
My yard is "organic", meaning I avoid using petroleum-based pesticides and herbicides and other toxic stuff.
I don't like pulling weeds out of cracks in the pavement, be it those lousy pink pavers, or the antique concrete driveway. (It used to have a strip of grass down the middle. I'd like it better if it still did!)
My brothers are big fans of Roundup, which I understand is made of things that can cause cancer, etc. A horticulture expert I know says that it breaks down over time, (my brother's justification for using it), but nobody knows exactly what it breaks down into!
A little web searching turned up various recipes. This is my variation. See the before and after photos below.
- (I'm told that Roundup is cheaper by the gallon, but at what cost to the environment?)