Andromeda (Pieris japonica)-Azalea bark scale

Eriococcus azaleae

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

For biology, life history, monitoring and management

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Management-chemical control

See Table 1 in: