Various blends of vinegar, salt and dishwashing liquid being used as an "organic" or "natural" or "no chemicals" weed killer are all over Pinterest and gardening blogs. They claim it's faster, cheaper and better than "Roundup" herbicide.
I have no clue how a blend of a commercially produced acid and a concentrated household detergent could be considered either "natural" or 'chemical-free". But I'm all for cheaper and better, so I tried it. I did a comparison test in early March by spraying two clumps of my worst weed, annual blue grass.
|One side is vinegar, sale and dishwashing liquid|
the other is Glyphosate.
You guess which is which.