Sonar AS Aquatic Herbicide - The Pond Shop

Sonar AS Aquatic Herbicide

  • $329.99

Have Duckweed or Watermeal?

Sonar AS will remove unwanted weeds from your lake or pond for a year or longer with a single treatment. No other aquatic herbicide on the planet is more effective on duckweed, period. Unlike other aquatic herbicides, Sonar has no restrictions on water use after application. Swimmers can still swim, fisherman can still fish and livestock can still drink. 

Sonar has been the product of choice for professional pond managers. Sonar is the most effective and cost-efficient treatment you can buy for the selective, long-term control of undesirable weeds.

Now homeowners can enjoy the benefits of time-tested application methods and materials developed by SePRO scientists to reclaim lost waters in some of the largest and most environmentally sensitive lakes in the United States

* Cannot be shipped to: AK, CA, CT, DC, HI, ME, NJ, NY, PR, RI, VT, WA

(See Technical Specifications for Application Rate Chart)


Recommended Application Rate: 

8 ounces treats up to a 1/4 acre pond 
16 ounces treats up to a 1/2 acre pond 
32 ounces treats up to a 1 acre pond 

Directions for use:

Treatments with Sonar AS can not get any easier. Simply mix Sonar AS in a clean bucket with pond water and pour in multiple spots around or into strips down the middle of your pond or lake. Product will disperse on its own.