How To control Flies In A Food Facility

Flies in a commercial food facility can case a vast array of problems including the closing of the facility. Given the seriousness of this insect, it is important to understand:

  • Flies are attracted to the smells coming from a food-processing facility
  • What other things attractant flies to the facility
  • The array of entry points through which flies can get in
  • The problems they flies cause once inside
  • What can be done for prevention

Following these practical integrated pest management principles will greatly reduce or eliminate fly activity:

  1. Install tight fitting automatic screen doors.
  2. Maintain a positive air pressure to deter insects from entering.
  3. Cover roof vents that emit odors with fine mesh.
  4. Screen all windows and doors as applicable.
  5. Do not leave doors open, only opening doors when necessary.
  6. Use air curtains to protect entry points that are used frequently. An air curtain produces a stream of air across an opening to inhibit entry of flying insects, dirt, dust and fumes, while allowing for easy entry and exit of people. Air curtains can be particularly useful in facilities which have workflow requiring that doors be left open. 
  7. Turn off lights when not needed.
  8. Eliminate excessive moisture and standing water.
  9. Use secured exterior fly bait stations. The fly bait station attracts flys away from the facility before they have a chance to enter. 
  10. Inspect all door, both entry and loading dock doors for failing seals. Install or replace door sweeps and seals.
  11. Utilize microbial products that will break down the fats, oils, and grease and eliminate odors that can attract flies and provide harborage for egg-laying.
  12. Use lures to monitor flying insect activity by placing them on sticky traps.
  13. Remove lights that are next to doors or other openings. Instead, add a spotlight on a lamp post some distance from the door but directed toward it. 
  14. Remove waste receptacles from high-traffic entrances and provide as much distance between sensitive areas and external entrances as possible.
  15. Place bottle/bag traps outdoors. Containing a liquid attractant, this bottle or bag system physically traps flying insects to reduce populations. 
  16. Install insect light traps (ILTs) between entry points and sensitive areas to intercept flying insects before they can proceed further. The light traps should be positioned away from direct sunlight and preferably in areas with a shadowed or darker background.
  17. Because the ILTs literally attract the flying insects, don’t place them close to the areas you are trying to protect. Position them in line-of-sight but some distance away to draw the flying insects away from the area.
  18. Utilize other forms of insect traps, lures or baits where possible.
  19. Keep trash bins, waste receptacles, dumpsters, trash areas, and trash chutes clean to reduce attraction and breeding. This should be performed at least once a week.
  20. Regularly clean all critical areas, including recycling containers, floor drains, or any other area that can hold water and food waste for extended periods of time.
  21. Utilize scatter granular fly baits around dumpsters or use in bait stations placed near entry points to intercept potential invaders.
  22. Inspect incoming shipments that could transport fly eggs and larvae prior to bringing them into the facility.
  23. Ensure that the vendors you purchase your raw goods have control systems in place. It is very easy to transport insect eggs into your facility and result in an infestation.
  24. Educate employees on the importance of communicating any insect observations as soon as possible. Catching an infestation in the early stages is key to a quick resolution.
  25. Communication, communication, communication.

Controlling flies requires the implementation of a multi-faceted approach and will require good communication between you and your pest control provider.