According to Patricia Diaz in the Healthful Resources Newsletter, distilled forms of vinegar have potential use as a herbicide. While vinegar for weed removal is recommended at a 15 to 30 percent concentration, gardeners can combine vinegar with additional ingredients to create a garden spray that is effective on both young and mature weeds.
Pour a small amount of the vinegar out of the gallon jug to make room for the additional ingredients.
Place the funnel into the neck of the vinegar jug, and add the salt to the vinegar.
Add the liquid dish soap to the vinegar.
Replace the lid on the vinegar jug and shake gently to combine all ingredients.
Pour some mixture into a spray bottle and apply to the weeds you wish to remove from your garden or yard. If weeds are located in a tightly planted area, wipe the leaves of the weeds with the weed spray using a paint brush or cloth. This prevents the spray from hitting the plants you wish to keep in the garden.