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Sample questions
What is the concentration range of fluridone in the SonarA.S. product?
- 10% to 90%
- 20% to 45%
- 41.7%
- 10 to 90 ppb
Show answer
The active ingredient is fluridone at a concentration of 41.7%.🔗 Source
According to the label, which of the following plant types is NOT controlled by SonarA.S.?
- Watermilfoil
- Hydrilla
- Algae
- Pondweed
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It is designed to control various submerged, emersed, and floating aquatic plants, including watermilfoil, hydrilla, and pondweed, though it does not control algae or certain other species like arrowhead or bulrush.🔗 Source
When using a backpack sprayer to treat static canals, what specific PPE is required for handling?
- Chemical-resistant goggles and face shield.
- Full-body protective clothing.
- Gloves.
- Respirator to avoid breathing spray mist.
Show answer
PPE: Gloves are required for mixing/loading/applying with hand wand sprayer to ponds/lakes or static canals, and for mixing/loading/applying with backpack sprayer to static canals.🔗 Source
What is the restriction regarding application rates near a functioning potable water intake?
- Do not apply if rates exceed 20 ppb within 1/4 mile.
- Do not apply if rates exceed 90 ppb within 1 mile.
- Application is prohibited within 1/4 mile of any potable water intake.
- Do not apply if concentrations exceed 45 ppb.
Show answer
Potable water intakes: Do not apply if rates exceed 20 ppb within 1/4 mile of a functioning potable water intake.🔗 Source
When applying SonarA.S. in-water treatments, what is the minimum duration the specified concentration must be maintained for effective control?
- 10 days
- 45 days
- 90 days
- A full growing season
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It is critical to maintain the specified concentration for a minimum of 45 days for effective control.🔗 Source
What is the specific mechanism of action by which SonarA.S. controls aquatic plants?
- It destroys the plant's root system through contact.
- It inhibits carotene formation, causing plants to appear white or pink.
- It prevents the plant from absorbing sunlight through chlorophyll.
- It targets the floating leaves of submerged vegetation.
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The product works by inhibiting carotene formation in plants, causing them to appear white (chlorotic) or pink before dying.🔗 Source
What must an applicator do before using the product for mixing and dilution?
- Test the water pH.
- Shake the container well.
- Dilute only with specialized aquatic surfactants.
- Verify the concentration is exactly 41.7%.
Show answer
Mixing and dilution: Shake well before using.🔗 Source
In which of the following water environments is application of SonarA.S. strictly prohibited?
- Irrigation canals
- Tidewater/brackish water
- Potable water sources
- Fresh water reservoirs
Show answer
Do not apply in tidewater/brackish water.🔗 Source
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