CutrineUltra

Under what specific condition is it restricted to NOT use CutrineUltra in water containing trout?

• If carbonate hardness does not exceed 50 ppm ✓
• If the water temperature is below 60°F
• If the copper concentration exceeds 1.0 ppm
• If the water is in a slow-flowing state

Answer: The label states: 'Do not use in water containing trout if carbonate hardness does not exceed 50 ppm.'

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Which of the following target pests is specifically listed as being controlled by CutrineUltra?

• Hydrilla verticillata ✓
• Duckweed
• Water Hyacinth
• Milfoil

Answer: The label explicitly lists Hydrilla verticillata and Egeria densa as specific rooted aquatic plants controlled by the product.

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What is the maximum allowable copper concentration in treated water according to the restrictions?

• 1.0 ppm ✓
• 0.9 ppm
• 50 ppm
• 1.5 ppm

Answer: The restrictions section states: 'Do not exceed 1.0 ppm copper concentration in treated water.'

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How should the application rate be determined for general algae control?

• Use Table 1 to determine concentration based on algae growth density ✓
• Apply a fixed rate of 0.9 lbs of copper per acre
• Apply a constant 1.0 ppm regardless of depth
• Use the same rate for all water depths

Answer: The mixing notes state to use Table 1 to determine copper concentration based on algae growth density.

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When applying CutrineUltra to an irrigation conveyance system via a drip system, what is a noted benefit?

• Prevents clogging of headgates and suction screens ✓
• Increases the water temperature to 60°F
• Reduces the need for copper management
• Eliminates the need for PPE

Answer: The label states that when using the drip system, the product helps prevent clogging of headgates and suction screens.

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Which of the following is required PPE for handling CutrineUltra?

• Goggles or a face shield ✓
• Respirator and heavy apron
• Chemical-resistant boots and earplugs
• Full-body Tyvek suit

Answer: The PPE section requires goggles or a face shield, along with long-sleeve shirts, long pants, socks, shoes, and rubber gloves.

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Which set of weather and environmental conditions will expedite the control of pests?

• Calm and sunny conditions with water temperature at least 60°F ✓
• Heavy rain and cloudy conditions with water temperature at 50°F
• High wind and sunny conditions with water temperature at 70°F
• Calm and overcast conditions with water temperature at 55°F

Answer: The label notes that calm and sunny conditions with water temperature at least 60°F will expedite control.

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According to the label, where is CutrineUltra intended for use?

• Outdoor water bodies such as lakes, rivers, and ponds ✓
• Indoor decorative fountains and aquariums
• Small volume garden pond systems
• Indoor hydroponic systems

Answer: The label specifies outdoor sites including lakes, rivers, reservoirs, and ponds, while explicitly stating not to use it in small volume garden pond systems.

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