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Birch dieback is a disease of birch trees that causes the branches in the crown to die off. The disease may eventually kill the tree. 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.
Betula papyrifera (paper birch, [5] also known as (American) white birch [5] and canoe birch [5]) is a short-lived species of birch native to northern North America.Paper birch is named after the tree's thin white bark, which often peels in paper-like layers from the trunk.
Despite this, the borers can still damage the trees if they are weakened by other means. Between about 1930 and 1950, many gray birch trees, along with paper birch and yellow birch (Betula alleghaniensis), were weakened by birch dieback disease, which allowed for the bronze birch borer to attack and kill the trees. [11]
Beech bark disease is a disease that causes mortality and defects in beech trees in the eastern United States, Canada and Europe. [ 1 ] [ 2 ] [ 3 ] In North America , the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect , Cryptococcus fagisuga . [ 4 ]
Betula pendula, commonly known as silver birch, warty birch, European white birch, [2] or East Asian white birch, [3] 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. Its range extends into Siberia, China, and southwest Asia in the mountains of ...
A decade on from the arrival of the disease in the UK, the Woodland Trust wants to see action to boost British nurseries to protect our woods. ‘Real threat’ of importing new tree diseases as ...
Co-existing tree and plant species will gain in the void left by the affected species, but often providing different functions. Eastern hemlock, for example, is commonly replaced by black birch in the northeast—a slow-growing, shade-tolerant and deep shade producing evergreen tree, replaced by a fast-growing, open, deciduous tree. While short ...
Betula cordifolia is a deciduous tree that reaches heights of about 60 feet or 25 m and a trunk diameter of about 30 inches or about 75 cm. [3] Mature bark is white or bronze-white, peeling in thin layers.