Originally posted by Suzaku:

Mosquitoes have very little health. You can kill them with even the worst bow and arrows. Fulings could probably just be dealt with by summoning the boss itself. They'll get preoccupied with him, and maybe even do some damage to it.

And there's always the option to sneak. Most people tend to forget sneaking is even a thing in this game.

Yeah kiting enemies into each other is a great way to deal with other enemies. Always remember that certain enemies don't like other enemies. Example: greydwarfs and trolls are allies. But they don't like draugrs and skeletons. If I run into a troll and don't want to deal with him I kite him into a swamp. Everything in the swamp hates trolls and greydwarfs. I bet everything in the plains hates them too and the elder.