Housekeeping and proofing are important when tackling flying insects. But also using the right fly killers.
'Zappers' are expensive to run. In addition, they blast pathogens out into the surrounding area (causing stomach upsets). They won't catch the really small ones (too small to sufficiently bridge the gaps in the grid). Therefore, we tend to steer clear of these in most settings (there are some settings where they are useful though).
If you're trying to protect a kitchen or food area of some sort, we recommend using sticky board technology fly killers. These are cheaper to run, and all flying insects get stuck, not blasted. Therefore, no pathogens are blasted onto food prep areas for example.
Are you a residential customer? Perhaps with hundreds of blowfly insects suddenly appearing indoors. Then, probably something has died under the floor boards - probably a mouse. Give us MG Pest Control a call.
Note the article below (CLICK the picture) regarding flies identified as a realistic vector for transferring the deadly C.difficile in hospitals.