A mostly sedentary pest found on the undersides of leaves and on the stems of many ornamental plant species, especially foliage plants in permanent displays. Damage may be due to copious amounts of honeydew that many species of soft scale produce and the associated sooty moulds that grow on honeydew. Armoured or hard scale insects do not produce sticky honeydew and can be more difficult to control. Dead scale insects can remain on plants for several months and may require physical removal to clean up an infection.
Control can be achieved by foliar application of Steinernema feltiae nematodes, Chilocorus ladybirds in warm conditions and lacewing (Chrysoline).