They more commonly occur on the stems of host plants.
Male shells are smaller, narrow, white, more abundant than the females.
They are easy to see on stems and leaves. Euonymus, pachysandra and bittersweet are hosts. Eggs hatch in early May in central Kentucky. In general, controls will be more effective if the scale population on a plant is first physically reduced by pruning out heavily infested and sickly branches. In some cases, large sized scales can be scrubbed off with a stiff brush.