I have wondered for long at times how to totally destroy some species like cockroaches or mosquitoes. At times and at some places, they are so enormous and they cost humans a lot (think about the dengue scare at the start of 2010 in Delhi).
One of the best strategies is to be implant a virus/disease in the species which spreads for a few months/years among the whole species across generations and then like a ticking time bomb goes off all on one very fine day. Entire affected species gone! Boom!
But unfortunately, the only problem is that all viruses/diseases harm/kill the victim after a cycle that starts when it enters the organism. So the universal "all in one boom" cant happen at a particular day as such.
Now, scientists have finally got half the solution of the perfect genocide.
Enter the GM mosquitoes!
Scientists have created infertile males which they will release in dengue affected areas. Females won’t produce offspring with these guys, even after mating with them. Studies have found that dengue-infected populations fell by 80%. The males are engineered to die off naturally, and females only mate within their species, so the GM traits are self-limiting.
Taking this one step further, the ideal solution is to have sexually transmitted infertility. Then we obtain Success. As this species is not monogamous, the infertility will spread and make the whole species infertile with no heirs whatsoever!
Welcome to the new age of genetically engineered totalitarian obliteration!
On the same lines, I just hope AIDS is not some kind of extermination planned by some aliens/external forces...