Product Overview

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.

Season-Long Control

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.

For more information

For more information about Sonar or assistance in designing a treatment prescription, contact a SePRO Technical Specialist.

Labels and SDS

Sonar A.S. Specimen Label

Sonar A.S. Safety Data Sheet

Sonar Genesis Specimen Label

Sonar Genesis Safety Data Sheet

SonarOne Specimen Label

SonarOne Safety Data Sheet

Sonar PR Specimen Label

Sonar PR Safety Data Sheet

Sonar Q Specimen Label

Sonar Q Safety Data Sheet

Sonar SRP Specimen Label

Sonar SRP Safety Data Sheet

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. With Sonar you enjoy:

  • 30 to 60 days to control established weeds, full results within 90 days
  • Visual confirmation of Sonar’s action, as chlorosis (bleaching) gradually appears on the growing points of treated plants

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
  • Flexible enough to adapt to different waterbody shapes and sizes, water flow patterns, aquatic plant species, and types of use
  • An effective solution for fishing, swimming, or decorative lakes
  • No swimming, fishing, or drinking restrictions, even directly after application

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.