.skip-nav {position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden;} Skip to main content
Skip to main content

Aquatic Weeds Treatment Schedule

TVA manages aquatic plants in developed public-access areas like boat ramps, swim beaches and courtesy piers on its reservoirs to ensure that everyone can enjoy these public spaces.

The TVA aquatic plant management team works to preserve aquatic plants’ positive qualities, such as providing fish and wildlife habitat, while managing negative impacts.

TVA staff prescribe and assign herbicides based on intensive surveying and monitoring. TVA contractors then apply herbicides at the direction of TVA staff in areas deemed in need of management. Treatment schedules are posted on Thursday for the following week. (Note: Management treatment schedules are contingent upon weather conditions.)

TVA contractor vessels are marked with “TVA Contractor” signs and have a flashing light indicating when an application is taking place. Following treatment, TVA staff then resurvey and monitor each site.


Contact Us

We're always looking for more information about aquatic plants on TVA reservoirs. Let us know where and what you see, and send us your photos. Email us.

Potential Treatment Maps

Click below to see a map of potential management zones for each of the reservoirs on which TVA currently manages aquatic plants. Management areas are highlighted in bright green:

Chickamauga
Guntersville
Melton Hill
Nickajack
Pickwick
Watts Bar

2027 Treatment Schedule


Note: Treatment typically begins in May/June. Schedules are posted on Thursday for the following week.

None at this time.

None at this time.

None at this time.

None at this time.

None at this time.

None at this time.