EPA Approved Solutions

Duke’s Razorooter® is a diquat-based herbicide registered by the U.S. Environmental Protection Agency (EPA) for controlling nuisance tree roots in sanitary sewer line collection systems and received a classification of “evidence of non-carcinogenicity for humans” (USEPA Diquat R.E.D. Facts, July 1995). In 2014 the EPA further lowered the signal word on Duke’s diquat dibromide labels from “warning” to “caution.” Its active ingredient, diquat dibromide has been used as an aquatic herbicide to control vegetation in ponds and kill algae for many years.  

With Razorooter®, roots are killed on contact inside and outside sewer lines, and the foam penetrates through wye connections to kill roots in lateral lines. Trees and other above ground vegetation, wastewater treatment plants, as well as the wastewater treatment process are fully protected. Environmental and human health safety is our top priority.

When Razorooter® is applied to the sewer line, the normal sewer flow will pass under the foam. The flow of wastewater may become slower temporarily but will not cause stoppages.

Over 2,500 municipalities across the United States treat their sewer pipes with chemical root control to kill roots, realizing the benefits of dramatically reduced sewer system overflows, with no harm to trees and plants.

Foam being poured into sewer
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Root Service