Pest description and damage Immature scale superficially resemble mealybugs in appearance. Mature female scale are about 0.125 inch long and appear like white cottony sacs, often located on twigs and stems of azalea, especially in branch axils. Eggs, crawlers and adults beneath the wax are red. Hosts include andromeda, azalea, rhododendron, hawthorn, poplar, willow, and most recently, blueberry in the Pacific Northwest.
For biology, life history, scouting, and management options
Azalea (Rhododendron)-Azalea bark scale
See "Scale insect" in:
See Table 1 in: