There may be up to 5 generations per year, dependent on temperatures. The female can produce hundreds of yellow, oval eggs, and partially inserts them into the margins of terminal leaves. The mobile nymphs then feed by inserting their proboscis into the plant tissues, causing the development of a pit or blister that disfigures the foliage. There is heavy production of honeydew and the resulting sooty mold, and heavily infested plants can suffer with serious decline in health and appearance.
A great many natural enemies have been studied and released, often with acceptable results. These are primarily parasitic wasps that are also native to Australia. If infestations can be discovered early, prior to much leaf damage, a light horticultural oil may be effective. Neem oil and other tree oils can be applied with some effectiveness, concentrating on the lower surfaces of the leaves where most of the nymphs are found. A systemic such as imidacloprid also may be effective.