Residual insecticides are useful for typical pest control. A very good residual insecticide kills fruit flies right away and lasts for months. Once you spill anything at all sweet or syrupy on your own counters or flooring, wipe it up with soapy h2o to remove every one of the residue. https://howtogetridof.it.com/pest-control/how-to-get-rid-of-fruit-flies/