I might just have to furrow my brow and flex my entire upper torso and let the cortisol run free!!  Settle down, Wally.  You are going to put yourself into an early grave the way you react to every little thing that is a surprise!!  Parasitoid…  Well, that’s just a fancy, college-level word for a species that lives off another species- sort light fighting fire with fire I suppose…  or not…  also known as a bio-control agent, and it appears that there are many natural enemies of the EAB (that’s Emerald Ash Borer…)

Oh, and as previously mentioned, Abbey Powell is a real person…  here’s her picture…