I have serious infestation of dandelion this spring, and to kill it, I bought the 30% vinegar solution from Green Gobbler.
I used undiluted 30% solution and put it in the multipurpose sprayer, setting a nozzle to squirt rather than spraying so that I can shoot vinegar solution right on the top of dandelion to minimize vinegar spreading immediate adjacent lawn. I probably squirted a good 5ml or slightly more and it killed dandelion and surrounding lawn as seen in the following photo;
I probably squired a way too much and should diluted the vinegar solution down.
Question: Will the surrounding dead grass grow back eventually ?
Also; I've experimented with a few dilutions but have not found a sweat spot in which dilution of the vinegar is enough to kill dandelion but has less damage on adjacent lawn.
I'd appreciate any comments or pointers.