SonarA.S.

What is the concentration range of fluridone in the SonarA.S. product?

• 10% to 90%
• 20% to 45%
• 41.7% ✓
• 10 to 90 ppb

Answer: The active ingredient is fluridone at a concentration of 41.7%.

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According to the label, which of the following plant types is NOT controlled by SonarA.S.?

• Watermilfoil
• Hydrilla
• Algae ✓
• Pondweed

Answer: 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.

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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.

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.

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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.

Answer: Potable water intakes: Do not apply if rates exceed 20 ppb within 1/4 mile of a functioning potable water intake.

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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

Answer: It is critical to maintain the specified concentration for a minimum of 45 days for effective control.

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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.

Answer: The product works by inhibiting carotene formation in plants, causing them to appear white (chlorotic) or pink before dying.

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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%.

Answer: Mixing and dilution: Shake well before using.

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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

Answer: Do not apply in tidewater/brackish water.

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