I don't think these Asian Hornets do anything other than sting you Devonlady, presumably because they see a potential threat to them. The problem is the number of times you would get stung.
The bee keepers here are on a constant lookout for them and inspect the hives, which are in various woodland sites, every day. One chap interviewed by the local TV spends all day sitting by his hives waiting- pretty boring I expect! But it only takes two Asian hornets to wipe out a European bee hive and I've seen film of them doing it.