The Internet is full of suggestions for removing hornet nests. Generally everyone agrees that burning a nest is not a good idea:
Ehrlich Pest Control company on the East Coast). Burning the nest is also supposed to make the remaining wasps "peevish". Water from a pressure washer is also a suggestion, which sounds like a great way to throw around wet hornets and further enlarge the hole in the tree; and setting up a shop vac to suck them up, which sounds like genius until you realize that you either need to empty the shop vac afterward or quietly bury the whole thing when you are done.
Example here from Red Green
So for the moment the hornets are sitting there unmolested. Winter is coming, after all.
The other yard annoyance I am having is pokeweed. Pokeweed is actually a fairly handsome plant, with purple, mildly poisonous berries that make still more pokeweed.
Pokeweed loves wet weather, and like squash, you can see a tiny sprout on Monday and by Thursday have a towering, 4 foot tall plant, shading out all the plants you really want to grow. If you ignore it for another week it will have set berries and made a tuber the size of a yam underground, making it hard to pull up. Here is one morning's crop on the compost pile:
Then there is wild grape. It also is quite pretty:
And speaking of keeping up with things,I don't see how my neighbor Evelyn manages to keep everything in her yard immaculate-- but she does. Here you can also see her neighbor Shaun's chickens, which make hilarious raptor noises every morning. I love those things:
In contrast, here is my yard: