Help frangipani thrive at home
IT’S been a big year so far for scale insects. They have been attacking a multitude of plants including citrus trees, shrubs like gardenia and also native plants, including the native frangipani, Hymenopsporum flavum.
This beautiful native rainforest tree is widely grown in home gardens in warm to temperate areas, producing masses of sweetly scented white and yellow flowers.
Scale insects can infest the stems and foliage of native frangipani, leading to yellowing leaves and the development of sooty mould (which is a black, ash-like layer that grows on the sweet honeydew that sap-sucking scale insects excrete and can cover stems and leaves).
Scale can significantly affect the health of the tree, leaving it looking absolutely miserable.
Scale insects can be controlled with oil-based sprays. Cover as much of the native frangipani as possible (a step ladder might come in handy if the tree is large – be careful up there), ensuring stems and upper and lower leaf surfaces are covered. Several sprays a few weeks apart may be required and dead scale can remain on the plant for a few weeks after spraying.
Correa ‘Catie Bec’
Correas are gorgeous Australian native shrubs that have captured the eye of clever plant breeders. Sometimes called native fuchsias, they have bell-shaped flowers that now come in some really lovely colours, including bright and delicate pink, orange, pale green and white.
Although hardy, frangipanis can attract scale insects that damage their leaves and flowers.