So, do wasps and hornets come out at night? Even though most wasps do not fly at night, Hornets (a type of wasps) do. The European hornet, which is the only species of hornets you will find in the United States, Apoica wasps, Ichneumonid wasps and Braconid wasps fly at night if the weather is calm.

Will wasps attack at night?

No, wasps generally don't attack at night, and they are less active after dark. They stay in their nests either tending to their offspring or taking care of their nests.

Is it better to kill wasps at night?

The best time to treat is at night, when the hornets and wasps are less aggressive. ... Most wasp and hornet sprays cause insects to drop instantly when contacted by the insecticide. Standing directly below a nest increases one's risk of being stung. Spraying into wasp nests should ALWAYS be done at night.