Linden (Tilia)-Lecanium scale

Lecanium spp.

Pest description and damage Lecanium scales are most noticed as they expand in spring. Female lecanium scale are about 0.125 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. The crawlers are pale yellow and feed on the undersides of leaves. They also produce honeydew.

For biology, life history, monitoring and management


See "Scale insect" in:

Management-chemical control

See Table 1 in: