These beneficial parasites are very small and harmless to people and pets. These tiny beneficials are born to attack and eliminate flies in the immature, pupal stage. It's best to release fly parasites throughout the fly season. Also, small amounts over a period of time (weekly, biweekly, or even monthly) has proven to be more effective than one large release. Let us know what the predators will be used for and we will get the right species for your particular need. Otherwise, we'll ship a mixture of species. 15000 fly parasites per colony, priced per colony. Shipped at 1-2 day delivery. Call for charges.
Over the years, many steady customers owning horse stables, chicken ranches and dairies have found that scheduled applications of these beneficials are a very effective and safe means of reducing fly populations.

General Release Rates
Large animals (horses, cows): 500 parasites per animal
Medium animals (sheep, goats): 250 parasites per animal
Small animals (birds, rabbits): 5 parasites per animal
Compost piles: 5 parasites per cubic foot
Shipping during cool weather via UPS 2nd Day Air. For hot weather via UPS Next Day. Call for Best Rates.