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Sample questions
According to the label, which irrigation methods are suitable for the application of Orbus 4F?
- Only drip irrigation
- Only center pivot irrigation
- Center pivot, lateral move, or drip irrigation
- Aerial spray and manual hand watering
Show answer
The label specifies the product can be used in center pivot, lateral move, or drip irrigation systems.🔗 Source
What is the Re-entry Interval (REI) for Orbus 4F?
- 24 to 48 hours
- Immediately after application
- 7 to 14 days (varies by crop)
- 30 days
Show answer
The label states the REI is 7 to 14 days, noting it varies by crop.🔗 Source
Under which weather condition should a technician avoid applying Orbus 4F?
- During temperature inversions
- During high humidity
- During light rain
- During midday heat
Show answer
The timing/weather section states to avoid application during temperature inversions.🔗 Source
What is a specific restriction regarding the application of Orbus 4F near water?
- Do not apply if water temperature is above 80 degrees
- Do not apply in water or to areas where surface water is present
- Do not apply within 5 feet of a moving stream
- Do not use if the water source is from a well
Show answer
The restrictions state: DO NOT apply in water or to areas where surface water is present.🔗 Source
When treating Brassica Leafy Greens for clubroot, what is the required application rate?
- 10 to 13.8 fl. oz. per acre
- 0.45 fl. oz. or 0.21 fl. oz. per plant
- 16 fl. oz. per acre
- 30 fl. oz. per acre
Show answer
For clubroot in Brassica Leafy Greens, the rate is 0.45 fl. oz. or 0.21 fl. oz. per plant via soil drenches or incorporation.🔗 Source
For a carrot crop, what is the specified application rate and method for Southern blight or Alternaria blight?
- 16 fl. oz. per acre via directed spray
- 30 fl. oz. per acre via aerial spray
- 0.45 fl. oz. per plant via soil drench
- 10 to 13.8 fl. oz. per acre via irrigation
Show answer
For carrots, the rate is 16 fl. oz. per acre applied as a directed spray.🔗 Source
Which of these is a mandatory PPE requirement when handling Orbus 4F?
- N95 respirator and rubber boots
- Chemical-resistant clothing, gloves, and eye protection
- Face shield and heavy-duty apron only
- Tyvek suit and nitrile gloves only
Show answer
The PPE section requires chemical-resistant clothing, gloves, and eye protection.🔗 Source
Which of the following fungal diseases is Orbus 4F specifically noted to control in apple crops?
- Apple scab
- Clubroot
- Southern blight
- Alternaria blight
Show answer
The label states Orbus 4F is used to control apple scab in apple crops.🔗 Source
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