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 this Author
Melody Lee worked as a newspaper reporter, copywriter and editor for 5 years. In addition, she has edited magazine articles and books. Lee holds a degree in landscape design and is a Florida master gardener. She has more than 25 years of gardening experience, which includes working at nurseries and greenhouses.