When is the best time to apply pesticides for wasps?

Applying pesticides for wasps at night, when they are on or in the nest, is the most effective strategy. Wasps are generally less active during the night and more likely to remain in or close to their nest, which allows for more targeted applications. When insects are less active, there is a reduced risk of them becoming agitated and increasing the likelihood of stings to the applicator.

While early morning is also a time when wasps may be less active, it is still possible for them to begin stirring as the sun rises. Dusk and dawn can provide mixed results because many wasps may still be active during these times as they return to their nests. Therefore, applying pesticides at night minimizes the chance of confrontation with the wasps and maximizes the effectiveness of the treatment, as they are more likely to come into contact with the pesticide while resting.