The nymph is inconspicuous and practically free of any waxy covering.ĭistribution – The azalea bark scale occurs in the eastern United States it has also been reported in Belgium, Germany, and Russia. It soon penetrates the bark with its long, sucking mouthparts and begins to feed. Nymph – The tiny nymph hatches from the egg and ventures out of the egg sac. The sac is about 3 mm long and 1.5 mm thick.Įgg – The egg is laid within the egg sac, occupying the void left by the female's shrinking body. The insect is hidden from view by the egg sac, a covering of felted or matted waxy threads ( Figure B). The small, yellow caterpillar causing the blisters is not visible because it feeds between the two leaf surfaces.Īzalea Bark Scale Skip to Azalea Bark ScaleĪzalea bark scale, Eriococcus azaleas Comstock, Eriococcidae, HEMIPTERAĪdult – The adult female azalea bark scale is dark red with short legs and antennae and long, sucking mouth- parts.
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