Who deals with termites? Renter or landlord?

I live in Florida and around a year ago I noticed termite holes through my wall and told my landlord what was going on. He sent one of his maintenance guys to fix it by replacing the drywall and everything seemed fine. About 1 month ago I started noticing the holes again but this time the termites where eating a lot faster, I then noticed that they had never left. I told my landlord again and he said he would do nothing about it. When I came home yesterday I saw easily over 1000 dead flying termites tered ALL around my apartment. Behind couches, underneath beds, underneath cabinets, etc. I was mortified and immediately started sweeping them up and putting them in a bag. I made sure to take MANY pictures for proof. I went to show him all the flies in the bag this morning and asked him if he would live in these conditions. He then told me he would still not do anything. I was wondering whose responsibility it is to take care of this infestation. Last year while my holes were starting another ladies roof came down because of termites in the same apartment complex, maybe 5 or 6 apartments down from mine. I'm moving in July 30th to New Orleans but I don't want to deal with this anymore. It's disgusting and my wall is becoming weak and may give way anytime soon (especially with the rains we've been getting). What do I do? I want to write a letter so that I have proof I told him but do I still have to pay rent? Should I call the health department or something?