Sonar (a.i. fluridone), SePRO's flagship aquatic solution, comes in several distinct formulations to tackle the toughest nuisance aquatic vegetation, such as watermeal or duckweed. Together, all the formulations make Sonar a versatile solution, fit for nearly any environment.
We have a Sonar for every waterbody, no matter your concerns and requirements:
Speed and Time
Size of treatment area
Ideal for water bodies with minimal flow. Designed for whole pond or lake treatment.
Lasts longer in the water and provides faster knockdown.
A fast-releasing, easy-to-use pellet allowing for more accurate placement.
Slow-release pellets that prevent dilution in fast-moving water.
A pellet formulation that delivers an effective dose to targeted plants.
Improved efficacy over broader treatment sites and increased monitoring capability.
Sonar is the most effective solution available for controlling duckweed, watermeal, and many other undesirable aquatic weeds. Sonar eliminates unwanted vegetation from lakes or ponds for a year or longer.
*Sonar Q not registered in Hawaii. Sonar SRP not registered in Alaska.
Experts in Aquatic Solutions
SePRO’s Technical Specialists are trained to assist you with your toughest issues, from aquatic weeds that keep coming back to nusiance or toxic algae that are plaguing a water body. See how we can help.
The Science of Sonar
By inhibiting the development of chlorophyll-protecting yellow pigments, Sonar (a.i. fluridone)
allows sunlight to destroy chlorophyll, which in turn limits the plant's ability to make food. This delivers gradual, selective control of target weeds, allowing desirable vegetation and fish to re-establish themselves while preventing oxygen depletion.
SePRO’s Research and Expertise
Over six years of research on product formulation, release rates, and pond sediment
Multiple, distinct Sonar formulations
Selective and broad-spectrum capabilities
Adapt to different waterbody sizes, shapes, flow patterns, aquatic plant species, and use types
An effective solution for fishing, swimming, or decorative lakes
No swimming, fishing, or drinking restrictions, even directly after application
Waterbodies with minimal water flow
Immediate uptake into target plants, most efficient concentration level; best for targeting emersed plants
Waterbodies with floating and emergent weeds
When fast-acting, long-lasting treatment is desired; has an easier, better-controlled application
Ponds with muck sediments/high organic content
Quickly expands for an accelerated release in water, providing better, focused control in a shorter time
Fast moving water, heavy outflow from waterbody
Slow dissipation in placed location to allow extended exposure time in high outflow areas
In any size/form of waterbody - ONE solution is needed
When only one formulation, product, and application are wanted across the board for all waterbodies
Variety of larger waterbodies (rivers, lakes, etc.)
When difficult treatment is needed in aquatic situations with dilution, flow, or more tolerant target plants