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https://hdl.handle.net/11681/6345| Title: | Evaluation of two fluridone formulations for the control of hydrilla in Gatun Lake, Panama Canal Zone |
| Authors: | Sanders, Dana R., Sr. Theriot, Russell F. Arnold, Wendell R. West, Sheldon D. |
| Keywords: | Aquatic plant control Aquatic plants Herbicides Fluridone Gatun Lake (Panama) Panama Canal Panama Hydrilla Aquatic Plant Control Research Program (U.S.) |
| Publisher: | U.S. Army Engineer Waterways Experiment Station |
| Series/Report no.: | Technical Report (Aquatic Plant Control Research Program (U.S.)) ; no.Technical Report A-79-3 |
| Abstract: | Hydrilla has become a significant aquatic plant problem in the Panama Canal Zone in recent years. To combat this growing threat to the use of Gatun Lake, fluridone, 1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone, was applied as a 4 lb/gal aqueous suspension and 5 percent pellet at rates of 0, 0.84, 1.70, 3.36, and 6.72 kg/ha active ingredient in 18 hydrilla test plots. Significant reduction in hydrilla biomass occurred after 84 days in plots treated at rates of 1.70 kg/ha or greater, while insufficient control of hydrilla occurred in plots treated at 0.84 kg/ha. Fluridone did not adversely affect dissolved oxygen and other water quality parameters, nor were there any noticeable disturbances of the plankton and benthic communities. The residue levels in both the water column and hydrosoil had decreased to less than 15 percent of the applied compound by 56 days after application. The observed responses were attributed to the small quantity of herbicide added to the water column. |
| Description: | Technical Report |
| Gov't Doc #: | Technical Report A-79-3 |
| Rights: | Approved for public release; distribution is unlimited |
| URI: | http://hdl.handle.net/11681/6345 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| TR-A-79-3.pdf | Technical Report A-79-3 | 12.68 MB | Adobe PDF |  View/Open |