(re-posted from the American Community Gardening Association)
Making your own weed killer is easy and made with products you probably have in your kitchen cupboards. Many recipes contain vinegar which is highly acidic and kills the plant. Acetic acid readily degrades in water (so don’t spray right before an expected rainstorm) and doesn’t bioaccumulate (build up in the soil). Vinegar will decrease the pH of the soil somewhat, but within 48 hours the pH balance is back to its original state. It is also a biodegradable product.
A few drops of dish soap makes the vinegar stick to the weed longer, and a couple of days baking in the sun should do the trick!
All recipes should be used only on plants that you want to get rid of, taking care not to spray any on surrounding plants. These are most effective when used on emerging weeds. Spray these directly on weeds in the garden or pour directly into cracks of walks and driveways.
Although we will never completely eradicate weeds from our world, at least we can keep them under control using a few eco-friendly solutions and maybe get a little exercise at the same time!
Vinegar Weed Killer
• 1 tablespoon of gin
• 1 tablespoon of apple cider vinegar
• 1 teaspoon of liquid dish soap
• 1 quart of hot water
• 1 gallon of distilled vinegar
• 1 cup of salt
• 1 tablespoon of liquid dish soap
Or just plain old vinegar.
-Doreen Pollack, ACGA Board Member