Fabulous, will try this. I found clove oil works great on indoor white mites (mixed in a similar base) but am looking for something I can kill fruit flies with. I hate those things.If you mix up a spray bottle of the items above and add tea tree oil and/or geranium oil it will kill them on contact. (DILUTED with water/white vinegar) The insects have convulsions and then die. I've been spraying my coop walls & perches with tea tree and lavender oil mixed to control mites and other insects for yeas. (ACV will clog the spray bottle and is sticky which is why I use distilled white vinegar) I don't use any soap just essential oil mix.
I find that citronella and lemon grass oils attract bees.