sonar as
Product Label MSDS Sheet

Sonar Liquid with fluridone is a selective, root killing, systemic herbicide. Controls weeds in fresh water ponds, lakes, reservoirs, irrigation canals and drainage ditches.

Treat your entire pond.

Selective control provides excellent results on many difficult to control weeds, while allowing desirable vegetation to remain. Entire ponds should be treated at one time. Please read entire label for supplemental directions regarding control of duckweed and watermeal.

How It Works

Sonar AS is absorbed by leaves and stems directly from the water and by roots from the hydrosoil. In susceptible weeds, Sonar Liquid inhibits the ability to produce carotene. Without this ability, chlorophyll is rapidly degraded by sunlight and the weed dies.

Visible effects in 7 to 10 days.

Initial results show a bleaching at growing tips of the weed. Within 7 to 10 days weeds begin to turn white or pink and decay. Under optimum conditions full weed kill occurs in 30 to 90 days. Results occur slowly. Sonar Liquid will not cause oxygen depletion.

Application

To apply, determine the volume of water to be treated in acre-feet. Use 1 pint of Sonar Liquid per 2.5 acre-feet or 6.4 ounces per 1 acre/ft for POND treatments. Dilute with water and apply uniformly over the surface.

Water treated with Sonar Liquid should not be used for irrigation for 30 days following treatment.

Size

Ordering

1 Pint
(Treats 0.50 to 0.75 acre)
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1 Quart
(Treats 1.0 to 1.5 acres)
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1 Gallon (Treats 4.0 to 6.0 acres) Visit Web Store

 

Effectiveness

DUCKWEED Excellent
AMERICAN LOTUS Good
BLADDERWORT Good
VARIOUS PONDWEEDS Good
COONTAIL Good
ELODEA Good
HYDRILLA Good
MILFOIL Good
SPATTERDOCK Good
WATER SHIELD Good
WATER WILLOW Good
WATERMEAL Good
WHITE WATER LILY Good
PLANKTONIC ALGAE Fair
CATTAILS Fair
PARROT FEATHER Fair
SMARTWEED Fair
WATER PRIMROSE Fair

 

Water Use Restrictions

Active Ingredients:Fluridone aqueous suspension
Weight % Active Ingredient: 41.7
EPA Reg.No. 67690-4
Number of Days
Human Drinking 0**
Human Swimming 0
Human Fish Consumption 0
Animal Drinking 0
Turf Irrigation 30***
Forage Irrigation 30***
Food Crop Irrigation 30***
** See label for distance allowed from potable water *** Voluntary restrictions suggested by manufacturer

Sonar AS Application Examples:

  • Sample 75' x 75' Pond (.13) Acre 4 ft avg depth - Amount required: 3.3 Ounces
  • Sample 105' x 105' Pond (.25) Acre 4 ft avg depth - Amount required: 6.4 Ounces
  • Sample 148' x 148' Pond (.50) Acre 4 ft avg depth - Amount required: 12.8 Ounces (pint)
  • Sample 208' x 208' Pond (1.0) Acre 4 ft avg depth - Amount required: 25.6 Ounces (quart)

*Consult label for exact doseage and dilution rates. Examples shown above assume duckweed is present.

For Best Results

For best results, apply in spring and summer during the early stages of growth. Consistent concentrations must be maintained for 7 to 10 days following application. Rapid dilution will reduce effectiveness.

In lakes it is necessary to treat a minimum of 5 acres. Treating less than 5 acres or treating narrow strips may not produce satisfactory results due to dilution. Use Granular formulations in lakes to maintain a consistent concentration and insure maximum results.

Water treated with Sonar Liquid should not be used for irrigation for 30 days following treatment.

Notices

Sonar should not be used for spot treating.

*All pesticides can be harmful to health and the environment if misused. Read the label and follow directions. Consult with your local regulatory agency before applying herbicides and algaecides to public waters. There are herbicides from other states that are either not licensed in Wisconsin or Illinois, or are not recommended by ABI.

A WI DNR Aquatic Plant Control Permit or DATCP Fish Farm License is required in WI in order to apply algaecides or herbicides. In addition ponds and lakes with overflows not contained on the property are required to obtain a WPDES permit. Illinois Residents are required to obtiain NPDES permits through the Illinois EPA.

In order to apply chemicals in liquid form within Wisconsin, the applicator must be licensed with the State.

Recommendations of pesticide or treatments for specific algae or aquatic plants are provided for general information purposes only - no warranties are expressed or implied.

* We do not ship EPA registered Algaecides or Herbicides to the following states:

Alaska - California - Connecticut - Delaware -  Hawaii - New Hampshire - New Jersey - New York - Maine - Maryland - Massachusetts  -Oregon - Rhode Island - Washington State - Vermont (for additional information about these restrictions please see shipping or terms and conditions).

 

Michigan Shipments

Aquathol K, Reward, Weedtrine D, & Sonar products can not be shipped without a permit on file.