It's more effective to spray the nest when all the wasps are inside for the night. Since wasps are least active at night, that's the best time to spray a wasp nest. But that doesn't mean you have to stay up all night. The University of Minnesota Extension says late evening or early morning will work.8 sept 2020
Should you spray a wasps nest?
If you've struggled to get rid of a wasp nest, it might be because you spray during their work hours. Wasps that return to a missing nest will often start to rebuild in the same spot. ... Since wasps are least active at night, that's the best time to spray a wasp nest. But that doesn't mean you have to stay up all night.8 sept 2020
Can you just leave a wasp nest?
The nest will die off naturally, even if left alone. In late spring and early summer, wasp nests can often be successfully treated using proprietary brands of insecticide for the specific control of wasps' nests. ... As the summer progresses and the nests become larger, it may be wiser to seek professional help.
What can I spray a wasp nest with?
If you have a small and exposed nest on your property, a long-distance spray like Ortho Home Defense should do the trick. It can reach nests up to 20 feet away. Once sprayed, the wasp killer foams up to trap them in their nest. Ortho recommends waiting 24 hours, then checking on the nest and respraying if necessary.8 sept 2020
What happens if you wet a wasp nest?
Nests that are in the ground can be flooded with water. It is not likely to kill all the wasps and the ones that get away will come after you. It can be done using a long garden hose which will keep you at a safe distance.