Control insect pest on pyracantha

Asked September 26, 2016, 12:37 PM EDT

Have several pyracanthas which suddenly developed a large number of white insects (appears to be larva stage) on the branches (see photos). Do I need to control these insects and how? Pyracanthas are about 25 years old, have orange berries, are 15 feet high but unknown species.

Montgomery County Maryland

1 Response

Based on your photos this looks like woolly aphids on the stems. They are a sucking insect. Try knocking them off with a hard spray of water from the hose. Do this several times. See our website http://extension.umd.edu/hgic/woolly-aphids-trees-and-shrubs
mh