Looks like the emerald ash borer (Agrilus planipennis, "EAB") is back and making its presence known in Virginia. According to this report at the Fairfax Times, an infestation has been found in Herndon, the first in Fairfax County since an accidental planting of EAB-filled ash trees imported from Maryland back in 2003. There had been no new sightings since then, so it is thought that the eradication that began the year those trees were planted was successful. That points to some other pathway as the source for this latest EAB find. A note from an invasive species listserver indicates there will likely be at least one other confirmed sighting in Fairfax County as well.