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Sonar A.S.

Herbicide available in 8 ounce, 1 pint, 1 quart and 1 gallon

Sonar 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. Livestock can still drink. Check the label for irrigation precautions.

Sonar has been the product of choice for professional aquatic applicators from Florida to California for the past 20 years. Sonar is the most effective and cost-efficient treatment you can buy for the selective, long-term control of undesirable weeds. 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 US. SePRO is the recognized world leader in advancing the science of aquatic plant management. Trust your pond to SePRO and Sonar.

 

Labels & Safety Data SheetsProduct LabelMSDS

Sonar A.S. Aquatic Herbicide

 

Sonar 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. Livestock can still drink. Check the label for irrigation precautions.

Sonar has been the product of choice for professional aquatic applicators from Florida to California for the past 20 years. Sonar is the most effective and cost-efficient treatment you can buy for the selective, long-term control of undesirable weeds. 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 US. SePRO is the recognized world leader in advancing the science of aquatic plant management. Trust your pond to SePRO and Sonar.

 

Labels & Safety Data SheetsProduct LabelMSDS

Sonar A.S. Aquatic Herbicide

 

How to Apply Sonar A.S.

Sonar A.S. selectively manages undesirable aquatic vegetation for a year or longer and is recommended for use in water bodies with soft or muck bottoms. Sonar A.S., or Aqueous Solution, is easy to apply and just one application will provide season-long enjoyment of your pond. Sonar A.S. is available for immediate uptake into the target plants and is the ideal choice in waterbodies with minimal water flow and when targeting strands of floating vegetation such as duckweed. Water treated with Sonar A.S. will not harm any wildlife in or around your pond and can be used immediately for swimming or fishing.

Timing

Sonar A.S. can be applied starting in early spring, at the first sign of weeds floating to the surface, through midsummer.

Pond Level

Best control is obtained when discharge can be stopped for thirty days or longer. Pond levels should be at or near normal when water level when treated. Excessive outflow dilutes Sonar A.S. and reduces the chance of control. Outflow can be reduced by lowering pond level prior to treating with a siphon made from a rubber or PVC pipe.

Dose

The dose for the first Sonar A.S. application is normally one (1) quart per surface acre depending upon depth (see product label). Use 1 ½ quarts of Sonar A.S. per surface-acre for watermeal.

Application

The labeled rate for Sonar A.S. should be split and applied in two applications about 10 - 14 days apart. For small ponds, application can be made from the bank, or in the middle if possible. If you do not have access to a small sprayer, simply dilute the product in a large container with water according to labeled rates and empty directly into the pond. Be sure to triple rinse the container and pour the wash water back into the pond. If you are using a sprayer, place the nozzle of the sprayer underneath the water surface and apply. This is often referred to as an injection application. Spray in a straight stream directly in the water (do not "mist" on top of plants such as duckweed and watermeal). It is not necessary for Sonar A.S. to come into direct contact with the plants for effective control. If infestation is heavy and the weeds form a dense thick mat on the water, disperse the weeds in order to get the product directly into the water.

Control Time

Plants should start turning white as control begins in 15 to 30 days. It may take 30 to 90 days for final results. This slow rate of control is beneficial as it greatly decreases the chance for a severe change in oxygen levels which can harm fish.

No Restrictions

For swimming, fishing, boating or livestock use. Some precautions may apply for irrigation. See product label for complete details.

How Sonar A.S. Works

Aquatic vegetation is found in almost every pond and is beneficial to the natural ecosystem in moderate amounts. Aquatic plants produce oxygen, stabilize bottom sediment, provide food and cover for fish and serve as feeding and nesting habitat for waterfowl. However, some aggressive or non-native aquatic vegetation can become so abundant they out-compete all other plants creating a homogenous ecosystem in your pond. Not to mention the loss of enjoyment and recreational use.

How Sonar Works

Mode of Action: Sonar controls unwanted aquatic vegetation by restricting the plants’ ability to make food, causing them to die. This involves inhibiting development of yellow pigments that protect a plant’s chlorophyll from decomposition by sunlight. As the plant’s chlorophyll decreases, so does its capacity to produce food. The visual symptom of Sonar’s action is bleaching (turning white) on the terminal bud or growing points of the plant.

What to Expect: Sonar is selective and controls target weeds slowly. It lets desirable vegetation re-establish itself, and does not result in oxygen depletion or fish kill. Aquatic weeds remain under control for a full season and often longer.

It takes 30 to 60 days for Sonar to control the established weeds. You should expect full results within 90 days. You’ll be able to observe the visual symptoms of Sonar’s action as chlorosis, or bleaching, gradually appears on the terminal buds, or growing points, of the plant.

Plants in the intermediate range of susceptibility may require treatment at the maximum label rate. Typically these species are only partially controlled.

If aquatic weeds have impeded fishing, boating or swimming and made your pond unsightly, there is a solution: Sonar A.S. from SePRO Corporation. Sonar is the world's leading brand of aquatic herbicide for the selective, long-term control of undesirable aquatic vegetation. Sonar makes water usable for recreation, brings the fish population back into balance and restores property values; all without any restrictions on post-treatment swimming, fishing or drinking.

When you use Sonar, you'll benefit from the support and experience of a SePRO pond advisor to help you get the job done right. Buy Sonar online now to eliminate your aquatic weed problem and get back to enjoying your pond.

Picture of Sonar A.S. 8 Ounce Bottle
Sonar A.S. 8 Ounce Bottle
$230.00
excluding shipping
Picture of Sonar A.S. 1 Pint Bottle
Sonar A.S. 1 Pint Bottle
$442.90
excluding shipping
Picture of Sonar A.S. 1 Quart Bottle
Sonar A.S. 1 Quart Bottle
$762.00
excluding shipping
Picture of Sonar A.S. 1 Gallon Bottle
Sonar A.S. 1 Gallon Bottle
$2,472.00
excluding shipping