I am pretty sure they were pruned very late in the year. The tell-tale sign of a dying birch tree is the wilting and dying of foliage from the crown, or top of the tree, along with D-shaped insect exit holes in the bark. You can expect the tree to grow up to 90 feet tall. Since the birch trees are domesticated, its infection by the birch tree disease gives the owners an headache. Seven of the trees seem fine, and have plenty of … And the sweet birch (Betula lenta) can live to be 250 years. Hi. Landscapers have moved to using River Birches because of better resistance to certain insect problems. In an event in the Eastern United States and Canada in the 1930s and 1940s, no causal agent was found, but the wood-boring beetle, the bronze birch borer, was implicated in the severe damage and death of the tree that often followed. The disease may eventually kill the tree. Various species of birch (Betula spp.) The standard, European White Birch that was commonly used decades ago, is now difficult to find. Birch dieback is a disease of birch trees that causes the branches in the crown to die off. My Father's house has nine mature silver birch trees in the front garden. Prevent Birch Tree Diseases & Pests. There are several damaging birch tree diseases and pests. As this blog makes clear, it is very pest prone, and since gardeners mostly stopped using strong insecticides, it is very difficult to keep a tree alive for more than a few years. Birch tree lifespans decrease when the trees are planted in a backyard for a variety of reasons. Birch Insects And Diseases. The River Birch appears very similar to the White Birch varieties, with the main distinction being the color of the bark. A Guide to Birch Tree Pests and Diseases Birch trees display colorful and textural bark qualities that are unusual among tree species. On silver birch two canker fungi are particularly associated with the dieback – Discula betulina and Marssonina betulae. Birch leafminer A troublesome pest for a birch tree is the Birch Leaf Miner (Fenusa pusilla) . Betula pendula, commonly known as silver birch, warty birch, European white birch, or East Asian white birch, is a species of tree in the family Betulaceae, native to Europe and parts of Asia, though in southern Europe, it is only found at higher altitudes. We had around 1/3 of the height taken out of these trees a while back. Damaged birch trees pose a hazard because they are susceptible to dropping branches. Fungus That Grows on Birches. Provenance may be an important factor in determining susceptibility to these diseases, although climatic variables also play a part. Some of the most common are: Bronze Birch Borer – This potentially lethal pest can be difficult to control in birch trees. The river birch is one tree that can add a great deal of appeal, value, and shade to your home because it grows fast and grows tall. Some varieties have reddish and yellowish bark, but even more highly valued are the white-barked types. Like the lethal bronze birch borer, it is the larvae of the birch leaf miner which causes damage by burrowing into birch leaves in search of nutrients. It is an invasive wood-boring beetle whose larvae bore into the layers of the tree and interrupt the flow of sap. First, cultivated birch trees often get inadequate irrigation, insufficient sun, and, given those stress factors, they suffer from diseases … Birch tree diseases are diseases which affect the barks, leaves roots and the flowers of the birch trees. Weeping white birch, or silver birch as it is also called, is the European birch, Betula pendula. 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