Call: (800) 442-6648
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.
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
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.
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
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.
Sonar AS Application Examples:
*Consult label for exact doseage and dilution rates.
Examples shown above assume duckweed is present.
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
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
Water treated with Sonar Liquid should not be used for
irrigation for 30 days following treatment.
Sonar should not be used for spot
*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
pesticide or treatments for specific algae or aquatic plants are
provided for general information purposes only - no warranties are
expressed or implied.
California - Connecticut
- Delaware - Hawaii - New Hampshire
- New Jersey - New
York - Maine -
Maryland - Massachusetts
-Oregon - Rhode
Island - Washington
Vermont (for additional information about
these restrictions please see shipping or
Aquathol K, Reward, Weedtrine D,
& Sonar products can not be shipped without a permit
©all rights reserved
"The Quality of Water Reflects the Quality of Management"firstname.lastname@example.org