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Fluridone-Sonar RTU Quart

List Price: $136.00
Your Price: $95.00
You Save: $41.00
**Weed Control Guarantee!** We are so confident in the performance of this product, when it is applied according to the label directions of 3 sequential pond treatments over a 6 week period of time, that Ponds Rx offers a 100% performance guarantee to kill all susceptible weeds-check our weed treatment guide for details! Sonar RTU will effectively treat the same weeds as the Sonar Q, Sonar AS and Sonar One products. One case (4 quarts) will treat one-half acre.

Treatment schedule:
Apply two bottles day one,
Apply one bottle day 21
Apply last bottle day 42. Not available currently in these states: Alaska, California, Connecticut, Maine, New Jersey, New York, Washington

Introducing Sonar RTU—our newest formulation for successful do-it-yourself weed control for ponds. 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 and Duckweed

  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 waterbody resembles a golf-course green. Fortunately, no other aquatic herbicide is more effective on duckweed. Sonar provides complete, long-lasting control of duckweed and other stubborn unwanted aquatic vegetation.

How Sonar RTU Works


Sonar RTU manages undesirable aquatic weeds for a year or longer and is recommended for use in water bodies with soft or muck bottoms. Sonar RTU contains 5% fluridone in an easy-to-use liquid formulation that is applied straight from the bottle. Sonar works by stopping photosynthesis, which robs target plants of their ability to make food. Target plants turn white and gradually die over a period of six to twelve weeks. Unlike other aquatic herbicides, Sonar has no restrictions for swimming, fishing, boating or livestock use, even immediately after application. Check the label for irrigation precautions.  

Sonar is the world's leading brand of aquatic herbicide for the selective, long-term control of undesirable aquatic vegetation. With an unmatched dedication to advancing the science of aquatic plant management, researchers at SePRO Corporation have integrated fifteen years of laboratory research, field expertise and formulation innovation into Sonar RTU, the first Sonar product designed specifically for small pond and lake owners. Now you can benefit from time-tested application methods and materials developed by SePRO scientists all in one convenient package you’ll use right on your water’s edge.

How to apply Sonar RTU

Sonar RTU comes in a distinctive squeeze bottle that only requires the user to lift the nozzle on the lid and squirt the Sonar RTU directly      into the water. Treating an entire lake or pond only takes a few minutes. After measuring the size of the water body, consult the rate chart included with each Sonar RTU purchase to determine the amount of Sonar required. 

Sonar RTU bottle nozzle, closed Sonar RTU bottle nozzle, half open Sonar RTU bottle nozzle, open

You’ll apply half of the total dose on day one, then return 21 and 42 days later to add the rest. Simply apply Sonar RTU at two to four locations around the water body each time and the unique formulation of Sonar RTU will disperse throughout the water.


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