Which late-evening option is sometimes used for ULV applications?

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Multiple Choice

Which late-evening option is sometimes used for ULV applications?

Explanation:
ULV applications are best timed for late evening to minimize human exposure and drift risk. At about 10:30 PM, most people are indoors or asleep, which reduces contact with the ultra-fine droplets. The air is often calmer and more stable at that hour, making it easier to control where the droplets go and less likely for them to drift off-target. The earlier times listed are either still within periods of outdoor activity or daylight conditions that can lead to more exposure and less predictable droplet behavior. Noon is obviously not appropriate for night-time spraying, and 4:00 PM or 7:00–9:00 PM are earlier in the evening when activity is higher and conditions are less favorable for ULV dispersion.

ULV applications are best timed for late evening to minimize human exposure and drift risk. At about 10:30 PM, most people are indoors or asleep, which reduces contact with the ultra-fine droplets. The air is often calmer and more stable at that hour, making it easier to control where the droplets go and less likely for them to drift off-target. The earlier times listed are either still within periods of outdoor activity or daylight conditions that can lead to more exposure and less predictable droplet behavior. Noon is obviously not appropriate for night-time spraying, and 4:00 PM or 7:00–9:00 PM are earlier in the evening when activity is higher and conditions are less favorable for ULV dispersion.

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