Just pour the vinegar on the weed but realize that you don't want to do this in soil that you're growing stuff you want to keep alive. It makes the soil acidic.

I use it on the weeds that grow in the cracks between the concrete curb and the sidewalk. It's cheaper and safer than Roundup.

I have, though, used vinegar on soil that I needed to make more acidic for a plant that likes acid soil. It was coming up with yellow leaves, and after adding some dilute vinegar, turned deep green.


A.