Includes Parthenolecanium corni
Pest description and damage Lecanium scale are most noticed as the female scales expand in size in the spring. As females swell in the spring, they produce large egg masses under the scale and release considerable honeydew that coats nearby foliage. The female lecanium scale are about 0.13 inch in diameter and vary from red to dark brown in color. They are oval and raised, resembling small "helmets," "turtles," or bumps on branches, and stems. Male scale are smaller, fairly flat, and oblong. Crawlers are pale yellow, overwinter on stems.
For biology, life history, monitoring and management
See "Scale insect" in:
See Table 1 in: