Answer
Jun 02, 2022 - 12:41 PM
No, the use of feed through Insect Growth Regulators will not harm Fly Predators. The fly life cycle happens in 4 steps: egg, larva, pupa, adult.
IGRs can be used as part of a complete Integrated Pest Management (IPM) program. IGR’s such as Solitude, Altosid, and others, work by disrupting the larval stage of flies (maggots) when the larvae consume enough of the IGR. Any fly larvae developing in breeding sources not containing IGR (such as discarded hay) or in areas where the IGR may get diluted (manure piles) would not be affected by the IGR.
Fly Predators attack the pupal stage of the fly and do not eat manure themselves, so they are unaffected by the IGR. Any fly larvae that survive to the pupal stage have not consumed enough IGR to be affected, making them a safe food and reproductive source for the Fly Predators. Fly Predators are an efficient means of preventing fly breeding in areas where the IGR is not effective.
