Crapemyrtle bark scale: biology, monitoring, and management
Crapemyrtle bark scale is a relatively new invasive sucking insect pest, first officially reported on crape myrtles just north of Dallas, TX in 2004. Since then, crapemyrtle bark scale has spread to13 states throughout the southeastern U.S. and has been found on additional host plants. Crapemyrtle bark scale infestations are characterized by white or gray waxy secretions on stems, large twigs and trunks, but rarely on foliage. Infestations don't usually kill the plants, but reduce plant vigor and cause aesthetic damage. Because scales produce honeydew, black sooty mold is often associated with heavy infestations as well. Management includes mechanical, chemical and biological control options.