Please, please, please do not use Roundup or Monsanto products; it is not good for us or the environment.
CNN
Scientific American
NY Times
The Guardian
National Geographic
Rodale
Alternatives: www.everydaycheapskate.com/home-and-family/hands-down-the-best-way-to-kill-weeds-and-its-not-roundup/
White vinegar. Ordinary distilled white vinegar with 5% acidity is cheap and works great. If you can find a higher acidity even up to 20%, it is going to work faster, but the end results will be the same.
Table salt. Use the cheapest kind of salt you can find in the supermarket—not sea salt, rock salt, Epsom salts (not even close to table salt, trust me on that) or anything fancy. Just cheap iodized or un-iodized generic salt also known as sodium chloride (NaCl).
Dishwashing liquid. You will be using only a few drops, so the brand doesn’t matter. The purpose of the soap is to break the surface tension of the vinegar so it sticks to the weeds, forcing them to absorb it more readily.
WEED KILLER FOR AREAS TO BE REPLANTED. If you have weeds in areas you want to replant, do this: Fill an ordinary garden sprayer with white vinegar and add about one teaspoon liquid dishwashing soap like blue Dawn or Meyer’s Clean Day. Apply sprayer top and follow the instructions on the sprayer to get it ready to spray. That’s it. Seriously, it is that simple. Pick a hot, dry day to spray weeds until saturated, and they will wilt and shrivel up within hours so be careful to not spray anything you want to live. However, do not worry about the vinegar killing anything below the soil. Because vinegar will not harm the soil, you can safely replant the area once the weeds have died.
WEED KILLER FOR AREAS NEVER TO GROW AGAIN. To kill all vegetation in walkways, driveways and other areas where you don’t want any living thing to grow again, mix two cups ordinary table salt with one gallon of white vinegar. Do this in a container that is larger than one gallon capacity so you have room for the salt. Apply the lid and shake to dissolve the salt. Salt dissolves more quickly in vinegar than in water, but it takes a bit of doing. It may not completely dissolve, but that’s okay. Add 1 teaspoon of liquid dishwashing soap. Pour into an ordinary garden sprayer. Apply to weeds or grass on a dry, sunny day to areas you don’t want to see vegetation of any kind in the future.
The presence of salt in this recipe is what will eventually bring permanence to your weed killing. The salt will penetrate and leach into the soil. It may take several applications, but in time the presence of salt will “sterilize” the soil in this area so that nothing will grow there. Plan well before you go this permanent route.
These homemade weed killer recipes are not only cheap, both are completely non-toxic to humans and animals. In fact, except for the soap (not toxic, but not very tasty) you could have fun with the family tonight when you tell them you made the salad vinaigrette using 3 parts olive oil to 1 part weed killer
