Pest description and damage The immature scales superficially resembles mealybugs in appearance. Mature female scales are about 0.13 inch in length and appear like white cottony sacs, often located on twigs and stems of azalea, especially in branch axils. Eggs, crawlers and adults under the whitish cotton are red.
For biology, life history, monitoring and management
Azalea (Rhododendron)-Azalea bark scale
See "Scale insect" in:
See Table 1 in: