Cottony cushion scale
Symptoms and damage
The bodies of the mature
scale insects are covered with white or yellow wax. They congregate and feed on
the stems of the plants, and are relatively immobile. Large fluted egg sacs
(twice the body size) each contain 1000 red eggs 2 which hatch out into bright
red nymphs. The nymphs disperse to find new feeding sites. Prolific sooty mold,
reduced plant vigor, and twig dieback are symptoms of advanced infestations.
COMMENTS on disease
Shade may be a factor.
Small infestations may be pruned out. Encourage natural biological
controls. Apply oil or an approved insecticide if necessary.
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