Question From: Lutherville-Timonium, Maryland, United States
Q: Why do the small green leaves on my boxwood stay so curled after a cold winter. When will they open some?
A: The cupping is caused by an insect known as the Boxwood Psyllid. Horticultural Oil or Insecticidal soap sprayed on new growth should take care of them . For more information on treatment go to http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/insects/psyllids/boxwood-psyllid.aspx. Best And Happy Yardening, Nancy