Homemade Weed Killer 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.
You are here: Home / Crafty / 22 Everyday Products You Can Easily Make From Home 22 Everyday Products You Can Easily Make From Home 19. Homemade Weed Killer Before forewarned, this stuff actually works, so keep it away from your lawn, flowers, and other plants. It will kill them, too! It’s best used for sidewalk cracks or mulchy areas. If you spray it when the sun is out, it has an even better effect. Goodbye, weeds!