Sonar RTU 1 Quart


Sonar RTU is a Ready-To-Use formula that controls most troublesome pond weeds including duckweed. No mixing, no need for spray equipment or a boat-simply apply directly into the water from the shoreline. Sonar RTU represents an exciting new era in pond weed management for the do-it-yourselfer! The innovative new RTU formulation allows anyone to make water usable for recreation, bring fish populations back into balance, and restore property values. It’s so simple that applying Sonar RTU doesn’t require any mixing, special spray equipment, or a boat. Simply open the bottle and treat from the shoreline.

Many pond owners consider duckweed to be their toughest aquatic weed problem. Duckweed is a very common nuisance aquatic weed that is spread from pond to pond via waterfowl or other wildlife. While it is commonly mistaken for algae, duckweed is actually a tiny plant with an explosive reproductive capacity that can completely cover a pond in just a few weeks to the point that the infested water body resembles a golf-course green. No other aquatic herbicide is more effective on duckweed. Sonar provides complete, long-lasting control of duckweed and other stubborn unwanted aquatic vegetation.


  • Aquatic Weed Herbicide
  • Controls many aquatic weeds such as duckweed, watermeal, Eurasian watermilfoil, elodea and hydrilla
  • Controls the Entire Weed, Roots and All
  • Ready-To-Use Formula with no mixing required
  • No Spray Equipment or Boat Needed
  • Apply Directly into the water from the Shoreline
  • 1 Quart
  • See Product Label and Safety Data Sheet below for usage directions.  Use only as directed.
  • Due to governmental restrictions, we do not ship EPA registered herbicides and algaecides to the following states: AK, CA, CT, DE, HI, NH, NJ, MA, MD, ME, OR, RI, WA, & VT.  *Restricted use pesticide in Michigan and New York. Must provide a copy of your pesticides applicators license prior to purchasing this product in Michigan or New York.

Learn More:

Sonar RTU Product Label

Sonar RTU Safety Data Sheet

Additional information

Weight 2.2 lbs


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