I'VE bought a new house with a pittosporum hedge that is dropping its leaves badly. tobira Victorian box—P. Mostly originating from Southeast Asia and Japan, pittosporums are hardy, easy-to-grow evergreen shrubs or small trees commonly used as foundation plantings or hedges. A. Pittosporum problems . Healthy plants are less likely to suffer from insects like scale. White wax scale, white scale, citrus white scale: C. destructor White and globular, often with dark circular areas in the IT does sound as if scale … Although cottony cushion scale is often found on many different host plants, in North Carolina, nandina and pittosporum are the most frequently reported hosts. There are more than 20 ... pittosporum and many other species. This scale will also produce honeydew, a sticky substance they excrete which can be farmed by ants, and fungi start to grow on it causing ‘sooty mould’. Pittosporum—Pittosporum spp. Scale insects A difficult problem that can be managed Background Scale insects refer to a large group of insects within the super family Coccoidea. B.T., Highland Prevention. Pittosporum species are evergreen trees and shrubs. Ive been trying to save a large, well established Pittosporum tenuifolium hedge which has been seriously suffering from what seems to be black sooty mould. Tobira—P. It is about 1.5m tall and has black patches on the lower leaves. Any advice on giving it a boost? undulatum Family Pittosporaceae (Pittosporum family) Plant identification. The spots sound like white scale. I thought I got rid of these insects by spraying dormant oil during the winter, but they are back. Information about Pittosporum Plants. The most popular variety is the Japanese pittosporum Pittosporum tobiara. QUESTION: Cottony cushion scale has been growing on my pittosporum plants for 1 1/2 years. Yates Nature’s Way Citrus & Ornamental Spray is a ready to use, organically certified blend of pyrethrin (an extract from the pyrethrum daisy) and vegetable oil. Feed plants regularly, do what you can to improve the soil and make sure that plants are well watered. If there is an infestation this will affect the plant.if coverage of the scale is light then spray with a suitable insecticide oil. Immature cottony cushion scales debilitate plants by sucking out sap. I've been reading that the vedalia beetle is the best defense. ... Have you checked the stems carefully for scale? There are white things about 2mm long that look like scale stuck on the branches. ITs all over the leave, the wood and even the trunk of the worst affected plant. They can be sheared into hedges, topiaries, small specimen trees, or foundation shrubs. Disease Control for a Variegated Pittosporum. ... Pittosporum; Recommended products to control Scale Insects. 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