Last August they came out with as vaccine for WNV for horses...wonder when they'll have one for people. I'm sure glad when I came moved here I brought cases of bug spray with me. I hate wearing the stuff, but it's better than death by a mosquito. I use netting around my bed in the summer and even have...but rarly use...bug protective clothing.
Now how do I get rid of those blasted fire ants? I got chickens (I'm down to four now) to eat the bugs, but even they avoid the fire ants!
Fire ants I use a variety of attacks against the little devils. For individual mounds I find, I spot-treat them on the first day with a couple of tablespoons of dry grits (yes, the same stuff you see on breakfast tables in the South), then hit them with a quart or two of boiling water the next day. After being consumed by the ants, the grits expand and kill them (the ones the boiling water don't get first).
For stubborn mounds, I use one measured teaspoon of Orthene (its very toxic and I'm afraid my cats will get into it so I don't use much). No more, no less.
For long-term treatment, I use an insect growth regulator called "Logic." You spread it using a broadcast spreader over your entire property. It sterilizes the queen in each mound, causing the worker ants to die off with no replacements. I put it out about once every 3 years (its fairly expensive), and its effective until fire ants from the surrounding properties migrate into my property and start the cycle again.
You didn't ask, but ...
Fleas For flea control, the best thing I've found is plain, powdered yellow sulfur. You also broadcast-spread it, and you don't need much. I have yet to find a single flea on any of my cats for the last 4 years since I started using it.
Skunks Mothballs drive them off.
Roaches I haven't seen one in at least 10 years. The cats apparently take care of any that might be brave enough to be seen. When I lived in the city, the apartment next to mine was infested with the little beggars, and I used enough boric acid to float a battleship to get rid of them.
Crows I don't care about them except the ones that build nests in the outbuildings. For those, I hung a couple of old pie tins so the wind blows them together and makes them rattle. It works OK, but I still have to clean bird poop off the cars every once in a while.
Snakes I leave them alone (unless its a rattlesnake or copperhead) because they're death on mice and rats. Those get shot or hoed in half and thrown to the chickens.
Mice/Rats See Snakes. Chickens and cats are pretty good mouse-hunters as well. I haven't had any in the house yet, but I'll use traps if I see any, and seal up any entrances with steel wool and that foam stuff in a can.
Wasps/Yellowjackets I've got 5 or 6 mason jar traps, baited with orange soda. They fly in, can't escape, and drown in the sticky liquid.
Jehovah's Witnesses Answer the door wearing nothing but an old, torn pair of underwear and a 3-day stubble. Ask them if they've come to know Satan's power yet ;)