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Austrian Pine Tree Diseases
Austrian Pine Tree Diseases. The Austrian pine is a type of pine tree that grows well in U.S. Department of Agriculture plant hardiness zones 3 to 7. The tree can grow up to 60 feet high and 40 feet wide. The Austrian pine does not have the typical pine shape, but looks more like a large shrub. While resistant to many diseases that attack other...
The Austrian pine is a type of pine tree that grows well in U.S. Department of Agriculture plant hardiness zones 3 to 7. The tree can grow up to 60 feet high and 40 feet wide. The Austrian pine does not have the typical pine shape, but looks more like a large shrub. While resistant to many diseases that attack other pine trees, Austrian pines are susceptible to a few deadly diseases, according to Bartlett Tree Research Co..
Diplodia Tip Blight
Tip blight is a disease that attacks and kills the tree over many years. Tip blight commonly affects trees older than 30 years. The disease usually attacks the tree when a heavy wet season precedes or follows a drought year. In this disease the tree starts to die starting at the very tip of the branches. Slowly the fungus works its way toward the trunk of the tree. When the fungus reaches the tree trunk, the tree usually dies. The best way to prevent tip blight is to remove infected branches, or the infected tree, according to the Ohio Department of Natural Resources.
Pine Nematode
Pine nematode is a type of worm hosted by a beetle that likes to eat the sap of pine trees. The nematode causes a disease that gets into the vascular system of the tree, and slowly blocks the distribution of nutrients to the tree. Essentially the tree is strangled, according to Bartlett Tree Research Co.. The best way to treat this disease is to remove infected trees. Symptoms of this disease include wilted and yellowing needles.
Root Rot
The Austrian pine is also susceptible to several different kinds of root rot. Root-feeding nematodes will also cause root problems. Phytophthora root rot symptoms include dieback of branches, thinning at the crown of the tree and little new growth. Hetrobasidion root rot starts in cut stumps or branches of the trees. The rot spreads through the tissue of the inner wood of the tree, eventually killing the tree. Control of these rots include keeping soil well drained, removing fallen needles and removing cut stumps.
Needle Cast
Needle cast is a disease that attacks all pine trees. Needle cast is a type of fungal disease. It starts by attacking the lower branches of the tree, and works its way up over a period of several years. It is important to identify the kind of needle cast that is affecting your Austrian pine before performing any treatment. Symptoms include low needles that turn brown and fall off that move up the tree.
