What is the risk of predatory mites moving out of the crop and eating other non-target insects or attacking the crop plants themselves?

There are no risks of this happening with the use of predatory mites produced by Real IPM. None of the predatory mites feed on plants. Phytoseiulus is very specific in the pest mites that it can feed on and will prey on other Phytoseiulus eggs and juveniles if spider mites are not available. Although Amblyseius spp can also feed on pollen, they cannot reproduce well without their preferred prey.