DIMETHOATE 400 EC 2026 03 22

When treating Azaleas for Lace bug, Leaf miners, Mites, Tea scale, or Whiteflies, what is the correct mixing rate?

• 1.75 fl oz in 10.0 gal water ✓
• 3.5 fl oz in 10.0 gal water
• 1.75 fl oz in 1.0 gal water
• 6.0 fl oz in 10.0 gal water

Answer: The label specifies 1.75 fl oz in 10.0 gal water for Azaleas.

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For Birch, when should the application for Leaf miners be repeated?

• In early spring
• In early July ✓
• In mid-April
• In early September

Answer: For Birch Leaf miners, the label says to apply when leaves are expanded (mid-May) and repeat in early July.

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For Camellias, what is the correct application method and rate for a soil drench?

• 1.75 fl oz in 10.0 gal water
• 2.0 fl oz in 1.0 gal water ✓
• 3.5 fl oz in 10.0 gal water
• 2.0 fl oz per 500 sq ft

Answer: For Camellias, the soil drench rate is 2.0 fl oz in 1.0 gal water.

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According to the restrictions, under what condition should you NOT apply this product to Oak trees?

• If the plants are grown in a greenhouse
• If the application is made in a spray mixture containing oil
• If the plants have not been established for at least 3 years ✓
• If the application is made using high pressure hand wand equipment

Answer: The label states for Oak: 'Do not apply to plants that have not been established for at least 3 years.'

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Which of the following is a target pest for Arborvitae?

• Bactra moth larvae
• Bagworm ✓
• Fir cone midge
• Iris borer

Answer: The label lists Aphids, Bagworm, and Mites as target pests for Arborvitae.

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What is the Re-entry Interval (REI) for Woody Ornamentals and Christmas Trees Nurseries in outdoor areas where the average annual rainfall is less than 25 inches per year?

• 48 hours
• 10 days
• 14 days ✓
• 25 days

Answer: The REI is increased to 14 days in outdoor areas where the average annual rainfall is less than 25 inches per year.

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What is the maximum application rate for all crops when using high pressure hand wand equipment?

• 1.75 fl oz per 10.0 gal water
• 3.5 fl oz per 10.0 gal water
• 0.0025 pound active ingredient per gallon ✓
• 2.0 fl oz per 500 sq ft

Answer: The mixing notes state the maximum rate for high pressure hand wand equipment is 0.0025 pound active ingredient per gallon.

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When applying to Pinyon pine, what specific instruction must be followed to avoid phytotoxicity?

• Do not apply to plants not established for 3 years
• Do not use in spray mixtures containing oil
• Do not spray leaves or needles ✓
• Do not use on plants grown as propagation material

Answer: For Pinyon pine, the label states: 'Do not spray leaves or needles since phytotoxicity may result.'

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