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CONTROL:
BLOW / BOTTLE FLIES
  Blow fly (Lft) Bottle (Rt)
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CONTROL. Follow the basic 5 steps of identification, inspection, sanitation, mechanical control/exclusion, and insecticide application if required.
1. Be sure to complete a good inspection to make certain that the problem is blow or bottle flies.
2. Inspection involves identification & locating the fly breeding and larval developmental sites. It is occasionally helpful to do this at dusk or night when the flies are resting near their primary food and/or larval developmental sites.
3. Sanitation involves the removal or elimination of the larval developmental sites. This may involve the timely emptying and cleaning of garbage receptacles to render breeding materials unsuitable by drying them out. Sanitation should eliminate the bulk of the fly problem so that mechanical and insecticidal measures will be more effective.
4. Mechanical controls consists of garbage receptacles with tight-fitting closures, tight-fitting windows and doors, windows securely screened if they can be opened, doors with self-closures, all holes through exterior walls for utilities, etc., sealed, all vents securely screened, etc., and the use of air curtains, insect light traps, sticky-surfaced traps, etc. Insect light traps (ILTs) are particularly effective in reducing the number of flies indoors.
5. Insecticide application involves using appropriately labeled pesticides. Outdoors, this includes 0the use of boric acid in the bottom of dumpsters, treatment of vertical walls adjacent to dumpsters and other breeding sites with a microencapsulated or wettable powder formulation. Indoors, the use of automatic/metered dispensers and/or ULV applications on a room-by-room basis may be required, with the low-oil formulations being more desirable.
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