In order to get rid of the Yellowjacket nest, it is recommended that you do so at night. Make sure that it is at least ¾ of an hour after the sun has set, as this is the time when most of the workers would have gone back into the nest after a day’s work.
It might not always be possible, but remember that if you treat the nest during the day, a lot of the workers (at the very least, between 60 and 80 percent of them) might have been out of the nest at that point in time.
Also, whenever you’re going for this operation, make sure that you put some insecticide dust at the entrance of the nest. This way, you can rest assured that the Yellowjackets that aren’t home when you go in will also be taken care of when they come back home.
Read more about how to get rid of Yellowjacket.
If it’s an aerial nest, then a quick freeze with hornet spay can help. Just use this spray to saturate the opening of the nest as well as the inside part of the nest itself. Some of them are designed to spray from 10 to 15 feet, thereby enabling you to get rid of the nest without getting a ladder or being too close to the Yellowjackets (which, by the way are very aggressive). If you have nests far above the ground, you can also use a bee pole.
You can easily eliminate a nest on the ground with labelled insecticide dust as well as a wasp and hornet spray. It is recommended that you do this since you might not be able to get a quick knockdown spray all the way into the nest without getting bitten.