Soldier flies will exclude pests like house flies that spread disease.  Reduce manure by 50%, make it dry and not stinky, good fertilizer.  1000 lb of manure will produce 32 lb of maggots.

Self collection: will crawl out of manure on their own into collection chamber when they want to pupate, Sheppard 1992 built system where maggots would crawl through a 12 m PVC pipe to self collect.  Originally designed for chickens, easily adapted for pigs, cattle feedlots would be harder.

Mature in 2 weeks.