RM18 Fast Acting Diquat Herbicide Concentrate Root Weed and Grass Killer. When you want fast results with minimal prep, RM18 is your total weed control solution for unwanted brush, broadleaf plants, and grass. Fast-acting for visible results in 12 hours! A combination of two herbicides, RM18 starts to kill weeds on contact, producing visible wilting within 12 hours.
Kudzu, wild blackberry, poison ivy, poison oak, crabgrass, and dandelions (and over 100 other plants) are no match for this product, which is rainfast in thirty minutes. There are no entry restrictions to sprayed areas for pets or people after the spray has dried. For best results, be sure the spray solution thoroughly contacts all of the foliage you wish to kill.