Andromeda (Pieris japonica)-Azalea bark scale

Eriococcus azaleae

Pest description and damage The immature scale insect resembles mealybugs in appearance. Mature female scale are about 0.13 inch in length and appear as tiny white cottony sacs, located on twigs, stems and branch axils of host plants. Females cover themselves with whitish wax scales and eggs, crawlers and females beneath the scale are reddish. Hosts include andromeda, azalea, rhododendron, hawthorn, poplar, willow, and most recently blueberries.

For biology, life history, monitoring and management


See "Scale insect" in:

Management-chemical control

See Table 1 in: