If i might follow up the similar question as OP....
I am always a 'city girl' till moving to switzerland. I am not shameful to admit that I'm afraid of bee/wasp. In a way to avoid it, I try not to have any plant/color thing in my balcony but there're still quite of number of those flying in my apartment through the window gap...
I don't want them kill simply because I don't even want to get close to their dead bodies (yes, i'm freak out with this kind of lovely insects from the nature).
so my question is...other than leaving the country

or keep my window shut in summer

, both of which are not very nice to myself, what else could i do to discourage those bees/wasps from approaching my balcony e.g special plant, color, setting, smell etc? (mosquito net is one option but it's technically impossible to fix in my rented apartment.)
Your 'mercy' and help is appreciated.