Treating the insects might be possible, but the parasitic infections they can get are really wild. In captivity, they already resort to eating each other, witch is the perfect breeding ground for parasites.

Then there's the hairworm parasite, witch is present in tonnes of insects. Ever stepped on a bug, and seen a long "string" come out? That's a hairworm parasite. They cause crickets to eat each other even more and become suicidal in terms of jumping into water. So whenever you put them in the enclosure of a tarantula, or reptile to feed them they'd dash to the water bowl and dive in.