I use green mussel extract cream with menthol and other essential oils cream., also spray around with horticultural peppermint spray. Spraying clothes helps.
I discoved it by accident using it for sore muscles. Even works on other flying insects like mosquitoes and yellow jackets. Available on Amazon.
At night when the hornets are in their nest there are several techniques to eliminate their nest . Just google it on utube.
Another technique that works during the day is to purchase hormones that attract them ..place in a trap …
See utube.
https://garden.org/ideas/view/...
