Chicot Lake partial drawdown for herbicide application begins Monday

Chicot Lake, just north of Ville Platte, will be lowered two feet from pool stage for a herbicide application to control the nuisance aquatic plant hydrilla, according to Jody David, biologist district manager with the Department of Wildlife and Fisheries.

This is the third application in six years. The first was in 2003, then 2005 with excellent results, David explained.

The Department of Wildlife and Fisheries has recommended beginning the dewatering April 21. The water level will be allowed to drop three to four inches per day. On April 28, the lake should have fallen the required two feet, at which time the gates will be closed. It is expected the herbicide application will be made April 29, barring any significant rainfall. This application should be completed in one day.

Although the lake will not be closed to fishing, boaters are advised to maintain a safe distance from the boats performing the application on the north end of the lake. David explained the herbicide purchased for this application is SONAR PR® brand of fluridone. This extremely safe herbicide interferes with the plant’s ability to produce food and causes the plant to slowly break down. This EPA approved herbicide has no water use restrictions and is not harmful to fish. Fluridone, an active ingredient in SONAR, needs to be in contact with the vegetation for at least 30 days for effective control. The removal of two feet of water from the lake prior to the application will lessen the possibility of losing herbicide as the result of a significant rainfall event. This application will not eradicate hydrilla from the waterbody, but will significantly increase access and enhance opportunities for recreational activities.

For more information contact at (337) 948-0255 or jdavid@wlf.louisiana.gov.