The eggs are laid in the woody tissue where they overwinter. On problem trees, watch carefully for signs of activity in the spring. Examine terminal foliage for presence of the insects. Treat when leaves first open with Insecticidal Soap, Dursban, Malathion, Sevin, or Tempo. 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. Treatment of scales may be achieved with either horticultural oil sprays, which kill primarily by smothering, insecticidal soap or by conventional insecticides. Oil sprays kill all stages of the scale but caution should be used as some plants are sensitive to the oil.