In one Christmas tree field near Jefferson, Bryan Davis kept seeing a different kind of scale. We finally sent them in, and they were identified as the hemlock scale (Abgrallaspis ithacae). This scale is native to the US. It is closer to target shaped instead of elongate. It is not reported as being damaging to trees. The following image is from IPM Images. We will be monitoring this site to see if these scales develop into a problem.