Diquat Water Weed and Landscape Herbicide

Which of the following submerged weeds is NOT listed as a target pest for this product?

• Hydrilla
• Richardson's pondweed ✓
• Coontail
• Brazilian Elodea

Answer: The label explicitly states that DIQUAT WATER WEED & LANDSCAPE HERBICIDE does not control Richardson's pondweed, P. richardsonii.

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When applying the product for turf renovation, what weather/moisture condition must be met?

• Apply only during heavy rainfall
• Apply when the turf is wet with dew
• Apply only when the turf is dry and free from dew and incidental moisture ✓
• Apply only in high humidity conditions

Answer: The label states to apply only when the turf is dry, free from dew and incidental moisture for turf renovation.

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In which of the following locations is this herbicide NOT permitted for turf use?

• Golf courses
• Residential lawns
• Commercial sod farms ✓
• Public parks

Answer: The label specifies turf renovation is for 'ALL TURF AREAS EXCEPT COMMERCIAL SOD FARMS.'

What is a potential risk of exceeding the labeled application rate of this herbicide?

• Damage to the sprayer equipment
• Staining of concrete-based materials ✓
• Increased toxicity to non-target birds
• Delayed weed kill beyond 36 hours

Answer: The restrictions state that excessive rates may result in staining of concrete-based materials.

What must be added to the spray mix for Broadcast Applications per acre?

• A nonionic surfactant (contains 75% or greater nonionic surfactant) ✓
• A systemic nitrogen booster
• A liquid fertilizer concentrate
• A wetting agent with less than 50% surfactant

Answer: The label requires a nonionic surfactant containing 75% or greater nonionic surfactant at the manufacturer's specified rate.

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For Little Barley, when should this product be applied?

• Before the mid-boot stage ✓
• After the flowering stage
• During the seed head stage
• Only after the plant has died

Answer: The notes for bermudagrass lawns state: 'Apply this product before the mid-boot stage for Little Barley.'

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When using Diquat Water Weed and Landscape Herbicide for ornamental seed crops, what is the maximum number of applications allowed?

• One single application
• Up to three applications ✓
• Up to five applications
• As many as needed every 24 hours

Answer: The label states to repeat as needed at no less than 5-day intervals up to three applications for ornamental seed crops.

For an aerial application targeting waterlettuce and waterhyacinth, what is the required dilution range of water?

• 10 to 24 gals. of water ✓
• 75 to 200 gals. of water
• 5 to 10 gals. of water
• 50 to 100 gals. of water

Answer: The mixing instructions for aerial application of waterlettuce and waterhyacinth specify 10 to 24 gals. of water.

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