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eremophila nivea pests and diseases

By November 27, 2020 No Comments

They are generally plants of inland and arid areas and are popular with Australian plant enthusiasts. Grafting onto a Myoporum rootstock is the preferred method of propagation. [7], Although rare in nature, silky eremophila is often available in specialist nurseries with its popularity in part due to its soft, silvery-grey foliage and pale to deep blue flowers. Flowering occurs from August to October and the fruits which follow are dry, woody, oval-shaped with a pointed end and 4.5–6 mm (0.18–0.24 in) long. Other names. [4] The specific epithet (nivea) is a Latin word meaning "snowy" or "snow-white"[5] in reference to the colour of the hairs on the branches and leaves of this species. South Western Australia on sandy clay and clay loam. It can be difficult to grow in more humid, temperate areas although many people take up the challenge! To maximise the chances of success, the plant should be grown in an open, sunny position with good air circulation and the foliage should be kept as dry as possible. Its branches, leaves and sepals are covered with a layer of soft white to greyish matted hairs giving the plant a silvery-greyish appearance. A good plant for drier areas, as it will be short lived in more humid areas. The soft leaves are linear to lance-shaped to about 30 mm long by 4 mm wide. Genus. [2], Eremophila nivea is only known in the wild from near Three Springs in the Avon Wheatbelt and Yalgoo biogeographic regions. The best method of avoiding fungal diseases is to grow plants in open areas allowing plenty of air movement and sunshine. Botanical name. It will grow in most soils, is both drought and frost tolerant but needs to be grown in full sun. Needs good drainage and a sunny spot. A number of treatment methods have been tried including sowing the ripe fruits, sowing of aged and washed fruits and splitting the fruits to extract the seeds prior to sowing. Eremophila nivea is an erect shrub which grows to a height of between 0.8–1.6 m (3–5 ft). [2][3], The first formal description of this species was published in 1986 by botanist Robert Chinnock and the description was published in Nuytsia. Eremophila nivea – emu bush Eremophila nivea – emu bush A beautiful silvery foliaged shrub with purple tubular flowers in spring and summer. E.nivea is one of the most spectacular members of the genus. and Alternaria spp. The soft leaves are linear to lance-shaped to about 30 mm long by 4 mm wide. The petal tube is lilac-coloured, white with yellow-brown spots inside. Eremophila nivea is a small shrub to about 1 -1.5 metres high by a similar width. Eremophila is a large genus of 214 species, all endemic to Australia. The mauve or lilac coloured flowers are about 20 mm long and tubular in shape. E.nivea can be grown from cuttings but the foliage may easily rot under misting conditions. Eremophila nivea. Species. Eremophila nivea, commonly known as silky eremophila, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. Silky eremophila, Emu bush, Silky emu bush. The fruits are egg shaped and about 6 mm long. [2] It grows in sandy clay and clay-loam. The plant is reported to be frost sensitive. Listed as Endangered under the EPBC Act* (facing a high risk of extinction in the wild in the short term, as determined in accordance with prescribed criteria). Classified as 2E under the ROTAP * system. It is helpful to mound the soil to improve drainage. The petals are 15–23 mm (0.6–0.9 in) long and are joined at their lower end to form a tube. Although most plants sold are grafted to improve the hardiness and vigour of the plant, this does not fully overcome foliage problems. There are 5 overlapping, triangular to lance-shaped, tapering sepals which are 14–21 mm (0.6–0.8 in) long and have purplish-black tips. Pests are not a major problem with Eremophila subfloccosa but it can suffer from attack by the fungal diseases of Botrytis spp. The 4 stamens are fully enclosed in the petal tube. In nature it is a rare shrub with hairy branches and leaves, and blue, purple or violet flowers. It has very hairy stems and foliage giving the plant a very distinctive silvery appearance. [3], This species is classified as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia)[6] and an Interim Recovery Plan has been prepared. However, during extremely dry periods, it responds well to deep soakings. [6] Only a few populations are known, some of which are in danger of roadworks as they occur on road verges. * EPBC Act = Environment Protection and Biodiversity Conservation Act 1999;   ROTAP = Rare or Threatened Australian Plants (Briggs and Leigh, 1988)  For further information refer the Australian Plants at Risk page. The latter involves splitting the fruits in halves and quarters but some seeds are inevitably damaged during the process. It benefits from regular pruning after flowering to preserve its shape and to help prevent fungal diseases. Eremophila nivea is a small shrub to about 1 -1.5 metres high by a similar width. The outer surface of the tube and both surfaces of the lobes are glabrous but the inside of the tube is filled with long, soft hairs. In those areas, the hairy foliage is subject to fungal diseases which are difficult to control. Propagation from seed of Eremophila species is unreliable. Flowers are seen from late winter to early summer. [8], Threatened Flora (Declared Rare Flora — Extant), Department of Environment and Conservation (Western Australia), https://en.wikipedia.org/w/index.php?title=Eremophila_nivea&oldid=980941298, Use Australian English from February 2016, All Wikipedia articles written in Australian English, Creative Commons Attribution-ShareAlike License, This page was last edited on 29 September 2020, at 11:02.

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