The best time to start releasing is when some of the parasites have hatched in the bag. Keep the closed bag in a warm room out of the sun until you notice some parasites moving around inside. The emerging fly parasites can easily be seen by holding the bag up in front of a window or light and will appear as small black specks in and above the wood shavings. Release fly parasites in all manure areas- inside barns, paddock areas, feed bunks and loafing areas. Release them along fence lines, near corral posts and around the perimeter of manure piles, pits or bins. Also release around water troughs, rotting hay and feed, compost piles, drainage sites, kennels and any other sites where livestock droppings accumulate.

Although FlyRaptors are flying insects that can self distribute 300 to 600 feet, do not release them all in one spot. Sprinkle your FlyRaptors sparsely over the entire fly-breeding area. Directly distributing them in areas where they are needed will allow them to attack the problem areas more quickly and in greater numbers. If direct sunlight, ants, wild birds or chickens are able to kill or eat the pupae from which the FlyRaptors hatch, cover the pupae with a small amount of soil or organic matter. If you prefer, you may place a portion of the fly pupae in hatching stations and hang them up in the release areas. These can be as simple as putting a small amount of the pupae and shavings in paper bags or cups with small holes punched in them and tacking them up out of the way in several locations.The insects, when hatched, will exit from these containers and migrate to fly-breeding areas. This is also the best method for inside a barn area.

Fly parasites are highly susceptible to poisonous residues left by many of the more common sprays. Their use should be discontinued in the release areas. Chemical insecticides should be aimed at the adult fly population away from the breeding areas where parasites are at work. They should be used in areas where flies congregate, such as rafters in the evening, fence rails and barn sides in the morning sunshine and shady places in the heat of the day.

Fly traps and good manure management are ideal methods of enhancing your EcoLOGICAL Control Program. Adult flies can migrate 1/4 of a mile or so in one day.