Muscidifurax raptorellus - 2,000 Count Colony
Controls flies in animal manure accumulations and other filth fly breeding sites. Very effective against the housefly, biting stable flies, garbage flies, and the lesser housefly which make up to 95% of the flies in manure and other site accumulations. Five percent of the other flies are also parasitized, such as false stable flies, face flies, flesh flies and horn flies, but control is less complete on those flies which complete their life cycle widely dispersed in the pasture.These small parasitic wasps are the most natural enemy of flies during the pupa stage.
The eggs of the parasitic wasps are laid inside the flies pupae and the developing flies provide food from within for the young wasps. Parasitic wasps do not bite, sting, swarm or bother anything else, humans or animals included. Parasitic wasps are nocturnal and are rarely seen during the day. They operate to a depth of 8 inches in the manure, homing in with their biological radar on fly larvae that are bout to pupate.
A small handful or spoonful of the parasitized fly pupae in wood shavings is sprinkled either on manure or in furrows and then lightly covered to protect from birds.
The widest possible dispersal of the parasites is best. Top priority release sites are barns, stables, and kennels in and around coops, stalls, with special attention to hospital and calf pens on dairies and horse stalls, on feedlots and wherever straw bedding is provided for animals. Place also around corral posts, fence lines, paddock areas and other dropping sites at the edges of manure piles, pits or cards and wherever manure accumulates.
Guidelines for Parasite Estimation:
Horses/Cattle - 1000 fly parasites per animal per month and will also depend on the concentration of manure.
Goats,sheep,dogs, swine, ostriches - 300 fly parasites per animal per month. double up when fly problems are severe.
Chickens - 4 Fly parasites per bird per month.
Feedlots, dairies, llamas - 500 fly parasites per animal per month.
Typical Program Schedules:
NOTE 1 COLONY = 10,000 PARASITES COMPOST (per 100 cubic yards) 5-15 colonies/month. Schedule every week or two during fly season.
DAIRIES (approx. 100 cows) 2-4 colonies/month. Schedule weekly during fly season.
FEEDLOTS (approx. 1,000 heads) 4-9 colonies/month. Schedule every one to two weeks during fly season.
POULTRY (approx 10,000 breeders) 2-4 colonies/month. Schedule every week or two as manure piles up.
STABLES (up to 30 horses) 1-4 colonies/month. Schedule every two to four weeks during fly season.
All natural enemies of flies are susceptible to pesticides, particularly when directed at manure. Adult populations may be reduced with poison baits. Adult fly resting areas should only be sprayed with long residual pesticides. In doing this you will conserve the natural enemies and prevent the development of resistance and reduce toxic pollution.