Take a look at this fm spy transmitter which can be used as a bug transmitter or as diy fm bug too. It uses a single IC 74F13, one coil, a capacitor, one trimmer, one resistor and ofcourse one ...

Some oils from natural ingredients like peppermint, garlic, lemon, and thyme may help ward off insects. However, more research is needed to fully support the benefits of homemade bug sprays. Not ...