Here is what you will need: 1 gallon of white vinegar 1/2 cup salt
Liquid dish soap (any brand)
Empty spray bottle
Put salt in the empty spray bottle and fill it the rest of the way up with white vinegar.
Add a squirt of liquid dish soap.
This solution works best if you use it on a hot day.
Spray it on the weeds in the morning, and as it heats up it will do its work.