Wait until evening when the wasps are home, and suit up for battle with loose clothing, gloves, eye protection and a hat. Spray the nest entrance with wasp and hornet spray. Monitor activity for two days and respray if needed. To deal with yellow jackets, follow the same procedure as for wasps. But this time, plug the nest hole by packing it tightly with moist dirt.
Hornets are harmless unless disturbed.
If they are a nuisance, spray the nest with wasp and hornet spray. If they nest inside your home, wait until the first freeze and seal the nest entrance with silicone caulk. The Brainerd Daily Dispatch, Central Minnesota's Daily Newspaper. Continuing The Weekly Dispatch founded in 1881. Corp. The official newspaper of Crow Wing County.