Roebic Frk-12 is a foaming root killer that contains dichlobenil. According to the universities of Hawaii and Colorado state, dichlobenil effectively kills roots and its residual action prevents roots from regrowing by interfering with their metabolic processes.
About the Author
Melody Lee holds a degree in landscape design, is a Florida Master Gardener, and has more than 30 years of gardening experience. She currently works as a writer and copy editor. Her previous jobs include reporter, photographer and editor for a weekly newspaper.