Tiny, white, winged insects 1/16 inch long feed mainly on the undersides of leaves. Nonflying, scalelike larvae covered with white waxy powder may also be present on the undersides of leaves. When the plant is touched, the white insects flutter rapidly around it. Leaves may be mottled and yellow. In warm-winter areas, black mold may cover the leaves. The plant may grow poorly.
Treat plants with an insecticide labeled for this pest, following label instructions. Purchase only pest-free plants.