Everyone knows how the mosquito, flies, and gnats are troublesome. Each of you I'm sure was a ‘sufferer' from that insects. I heard even in our city some people were infected with malaria in the storage ponds area. My idea is to create such insecticide device which could exterminate sanguivorous pests by generating an ultrasound that only the insects you wish to deter can effectively hear and die of it, or the sound is taken to be a warning noise that only that species generates to warn themselves of impending danger. Hope you will agree with me that such device would be very useful because insects can get accustomed to mosquito repellents and protective creams thus the ultrasound can change the situation about it.