You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Chemical Control of Tree Roots in Sewer Lines
John F. Ahrens, Oliver A. Leonard and Neal R. Townley
Journal (Water Pollution Control Federation)
Vol. 42, No. 9, Annual Conference Issue (Sep., 1970), pp. 1643-1655
Published by: Water Environment Federation
Stable URL: http://www.jstor.org/stable/25036780
Page Count: 13
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Studies were made of herbicides that would selectively kill tree roots in sewer lines by the flooding technique. Metham and dichlobenil were used and, in some experiments, a surfactant was added. Toxicity was found to be a minor problem. One-hour flood treatment with metham, dichlobenil, and combinations of the two killed all roots in the line and most of the roots in the joints inspected. Metham also killed roots extending a short distance outside joints. Initial costs of chemical flooding and mechanical root removal were about the same at Sacramento, Calif., but chemical flooding by killing roots, not merely pruning them, seems more economical overall.
Journal (Water Pollution Control Federation) © 1970 Water Environment Federation