Do wasp eat aphids

Answer 1

The average wasp does not feed on aphids as they are too small but the parasitic wasp will lay an egg in the abdomen of the aphid, which kills it and as the larva grows it feeds off the dead aphid.

Answer 2

Aphids are basically plant lice, bugs such as green, black and white flies that destroy plants by feeding off their sap. Parasitic wasps have been known to hunt and consume them.