There is a bee's nest under the siding of the garage, who is responsible for the bee's removal the tenant or the landlord?

Hi, talk to the landlord about it. It appears that you may demand the landlord to remove them for safety reasons.

You should review your lease, but I would think common sense would dictate your informing the landlord of the problem as soon as practical.

I question whether what you saw was a bee. Given the location, it strikes me as more likely to have been a wasp. In any event, I don't know that anybody is necessarily required to remove whatever it was. If you can demonstrate that there is a beehive or wasp's nest on the premises in or around an area that you have a right to be present in under your lease, and can demonstrate that such presence poses a substantial danger to you (for example, you are strongly allergic to bee/wasp venom and would go into anaphylactic shock if stung), you might have an argument that the premises are not "habitable" and that, therefore, the Landlord must remove the hive/nest to avoid your declaring the lease breached. Instead of getting all "legal" about the situation, you might consider a little "self help." Why not just go buy a can of bee/wasp killer, spray a good dose into the location into which you saw the insect enter, head inside the apartment, and see if that solves the situation? I have had to do this in my backyard shed a few times over the years. I think a can of bee/wasp killer is probably $10 or $15. A lot cheaper than a lawyer.

Landlord. S/he has to make the property habitable. What kind of a landlord would refuse to do this for you? I wouldn't rent from a landlord that refused.