Safety of trichogramma kits (for clothes moths) vis-a-vis our outdoor lepidopterans?
We have a moderate-but-ineradicable population of clothes moths in our multi-storey, multi-closet NE U.S. home. We also have a fantastic native-plant landscape outside with an increasingly diverse population of native moths and butterflies.
Parasitic trichogramma wasps are marketed as a safe, eco-friendly and highly effective way to get rid of indoor closet moths, but I know very little about the wasps' mobility, life-cycle or natural history. If we use them in our home, are they going to get out and parasitize other lepidopterans? Are they (conveniently for me) host specialists? Or is this an unanswered/unanswerable question?