Sticky traps and ultraviolet light traps placed around a home or business also can reduce housefly populations. Hang resin strips (flypaper) in infested areas where there is little or no air movement. A rule of thumb is to place one 10-inch strip per 1,000 cubic feet of space.
Sanitation is the most important factor in any fly control plan. Manure and other organic fly breeding material should be regularly removed from barn and stable areas. Composting manure can also aid in fly control. The heat generated by proper composting will kill fly eggs, therefore reducing fly populations.
The feeding behavior of flies makes them ideally suited for spreading disease-causing bacteria and parasites: they may feed or lay eggs on garbage, animal manure or other filth outdoors and, seconds later, land on open food or food contact surfaces indoors.