Mud Dauber Nest: True to their name ... What's the best time of day to spray a wasp nest? The optimal time to spray a wasp nest is during the late evening or early morning when the temperature ...

Mud daubers are dark ... by a ladder or if you know you are allergic to wasp stings. A commercial wasp spray that shoots up to 20 feet is the quickest and easiest way to get rid of wasps.