![]() Common DiseasesĬommon diseases include Dothistroma needle blight and Sphaeropsis (Diplodia) tip blight. Depending on the scale, horticultural oil may control overwintering stages. Pine tortoise scale is brown and found on twigs. Pine needle scale is a white, elongated scale found on the needles. Stressed trees are more susceptible to attack. This occurs in mid to late April or when needle growth is about half developed.īark beetles bore into trunks making small holes scattered up and down the trunk. Pesticides are only effective when caterpillars are moving from overwintering sites to new shoots. The insects can be found in the shoots during May. European Pine shoot moth causes young shoots to fall over. All types produce honeydew which may support sooty mold. Some adelgids will appear as white cottony growths on the bark. Common PestsĬommon insect pests include spider mites and pine needle scale. Large, fast growing deciduous trees should be spaced far enough (20' - 24') between rows to prevent shading pines. Planting TipsĪustrian pines are spaced 8' - 12' within a row and 12' - 18' between rows. Winter buds have a distinct silver color. The attractive bark has dark furrows with gray or gray-brown mottled ridges. Austrian pine needles are stiff, usually straight, 2" - 4" long and are in groups of 2. Noted for its dark, rich green foliage, Austrian pine provides a pleasant contrast with other plants. Young trees are pyramidal in shape, but become oval with age and, on some sites, flat topped. It has thrived for over 200 years in some of the worst soil and climate conditions America has to offer.Ĭan grow up to 60' high with a 20' - 40' spread. Over 217 million were planted during the nation's great dust bowl shelterbelt project. Its forebears were likely worshipped by the Romans over 2000 years ago. It was introduced to the United States in 1759. The Austrian Pine is a native of Austria, northern Italy and Yugoslavia. Landscapers use the dark beauty of these trees for backdrops, but it is also an excellent specimen tree because of its leaf pattern. This stately tree can be seen in parks, along streets, in residential landscapes, and as farm windbreaks throughout much of the United States. Dothistroma needle blight, the scourge of Austrian pine in the Midwest, is not common here on the West Coast.The Austrian Pine (Pinus nigra) is an extremely tolerant pine of adverse soil conditions and air pollution. It is remarkably tolerant of hot and cold wind and is a crucial component in shelter belts and windbreaks. It prefers soils that are moist and well-drained, but adapts to heavy clay soils that are moist and at times poorly drained. ![]() They possess a sharp prickle and mature in the fall.Īustrian Pine is one of the most adaptable pines to a wide variety of environmental conditions. Needles are usually held 2 years before being shed.Īs Austrian pines mature their bark turns brown to gray, developing gray-brown ridges and dark brown furrows.Ĭones are grouped in bundles of two, and are 2” to 3” long. They grow to a length of 2” to 4”, and have a dark green color. Needles are sharp and stiff, and grouped in bundles of two. When young, it has a pyramidal shape with upright branches. At maturity it reaches a height of 60’, with a width of 25’. This western European native is now widely grown across the temperate United States. It is very commonly planted in the Midwest as well as on the east coast. Description A highly adapted and good looking evergreen tree, Austrian pine is valued for its densely branched conical form when young, maturing to a stately umbrella shaped tree with time.
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