Skip to product information

Sonar® A.S.

Sonar® A.S.

Liquid fluridone herbicide for systemic control of duckweed, hydrilla, and coontail. Safe, long-lasting DIY treatment for ponds and lakes.

  • No restrictions on water use after application
  • Apply once and enjoy season-long to year-long weed control
  • Long-lasting systemic action helps prevent weeds from returning
  • Cannot be shipped to AK, CA, CT, ME, NJ, NY, PR, VT, or WA
Regular price $302.99
Sale price $302.99 Regular price $0.00
calculated at checkout.
Choose a Size
Regular price $302.99
Sale price $302.99 Regular price $0.00
Regular price $620.99
Sale price $620.99 Regular price $0.00
Regular price $1,012.99
Sale price $1,012.99 Regular price $0.00
Sonar A.S. Aquatic Herbicide – Liquid Fluridone Weed Control for Duckweed, Hydrilla & Coontail – Fish Safe, Long-Lasting Pond Treatment

Sonar® A.S.

Regular price From $302.99
Sale price $302.99 Regular price $0.00
View full details
Overview
WHEN TO APPLY

Apply at the first signs of new weed growth or when weeds are actively growing

Spring
Summer
Fall
Winter
See Label For More Details
WHERE TO APPLY

Use as a full waterbody solution for 99.99% of all weed types.

Lakes, Backyard Ponds, Farm Ponds, Fire Ponds, Retention Ponds, & Lagoons

Explore

Key Features

  • Long-lasting weed control starts here
  • Treat once. Enjoy longer
  • Immediate absorption into the target plants
  • Sonar A.S. delivers results with a simple, one-time application, allowing you to easily treat nuisance weeds. With a liquid formulation that spreads throughout the water body, Sonar A.S. is designed for whole pond or lake treatment.

Seasons of Usage

  • Spring
  • Summer
  • Fall
  • Winter

Where to Use

Lakes, Backyard Ponds, Farm Ponds, Fire Ponds, Retention Ponds, & Lagoons

When to Use

Apply at the first signs of new weed growth or when weeds are actively growing

Shipping Restrictions

Cannot ship to WA, NY, NJ, ME, CT, CA or AK

Area Coverage

Apply 1 quart per surface acre (with a 4-6ft average depth).

Safety Data Sheet

How to Use

Step 1

Fill a 5-gallon bucket or sprayer add 1 to 2 gallons of water and then add the appropriate amount of concentrate.

Step 2

Spray out of the sprayer or pour directly out of a bucket and mix the product directly into the water. Continue to apply the solution in multiple locations until empty. See label for complete use directions.
FAQ