Prefix

In which crops is Prefix specifically designed for use?

• Corn and wheat
• Soybeans and cotton ✓
• Soybeans and corn
• Cotton and peanuts

Answer: It is specifically designed for use in soybeans and cotton.

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What is the restricted-entry interval (REI) for Prefix?

• 12 hours
• 24 hours ✓
• 48 hours
• 72 hours

Answer: REI: 24

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Which of the following is a required component of the personal protective equipment (PPE) when handling Prefix?

• Chemical-resistant gloves made of barrier laminate ≥ 14 mils or Viton™ ≥ 14 mils ✓
• Nitrile gloves with a thickness of 8 mils
• Rubber boots and heavy-duty overalls
• Respirator and chemical-resistant apron

Answer: PPE must include chemical-resistant gloves (barrier laminate ≥ 14 mils or Viton™ ≥ 14 mils).

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Why should caution be used when applying Prefix in areas with permeable soils or shallow water tables?

• The product is highly volatile
• The product is known to leach through soil into groundwater ✓
• The product may cause rapid phytotoxicity in shallow water
• The product may become inactive in saturated soil

Answer: The product is known to leach through soil into groundwater, so use caution in areas with permeable soils or shallow water tables.

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According to the label, what are the active ingredients present in Prefix Herbicide?

• S-metolachlor (46.4%) and Glyphosate (53.6%)
• Sodium Salt of Fomesafen (10.2%) and S-metolachlor (46.4%) ✓
• S-metolachlor (10.2%) and Sodium Salt of Fomesafen (46.4%)
• Fomesafen (46.4%) and S-metolachlor (10.2%)

Answer: The active ingredients are S-metolachlor (46.4%) and Sodium Salt of Fomesafen (10.2%).

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In which specific locations within New York is the sale, use, and distribution of Prefix prohibited?

• New York City and Westchester County
• Albany and Buffalo counties
• Nassau and Suffolk Counties ✓
• Erie and Monroe counties

Answer: Sale, use, and distribution is prohibited in Nassau and Suffolk Counties, New York.

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Under which weather condition is application of Prefix prohibited?

• When humidity is above 90%
• When wind speeds exceed 15 mph ✓
• When temperatures exceed 90 degrees Fahrenheit
• When rainfall is expected within 2 hours

Answer: Avoid application... when wind speeds exceed 15 mph.

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Prefix can be applied in which of the following ways in cotton?

• Preplant surface, preplant incorporated, preemergence, postemergence, or post-directed ✓
• Preplant surface, preplant incorporated, preemergence, or postemergence
• Preplant surface, preemergence, or post-directed
• Post-directed only

Answer: It can be applied as a preplant surface, preplant incorporated, preemergence, or postemergence treatment in soybeans and cotton, as well as a post-directed treatment in cotton.

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