This weed killer is non-discriminatory....it kills what it is sprayed on, so be careful where you spray it, perfect for cracks in your driveway and in sidewalk.
Adapted from food.com
cups table salt
gallon white vinegar (make sure it has 5 percent acidity)
drops liquid dishwashing soap, preferably Dawn
1 Mix this up in a large container and then put some in a spray bottle. 2 Spray the offending weed or vegetation. It should die in a couple of days. 3 Make sure you put your homemade round-up in a safe place. 4 Enjoy your weed-free area!