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The bacterium is known to cause 'watermark disease' in willow (Salix ssp.) trees. Watermark disease affects infected trees by occluding the xylem vessels, impeding circulation. Early signs of the disease are wilting or dried-out, dead leaves on intermittent branches throughout the tree's crown.
The fungus forms perennial fruiting bodies that rise as woody-hard, hoof or disc-shaped brackets from the bark of the infested living tree or dead log. The tree species is often willow but it may be commonly found on birch and alder and other broad leafed trees. The top is covered with a dark, often cracked crust, a stem is present only in its ...
Salix alba, the white willow, is a species of willow native to Europe and western and central Asia. [2] [3] The name derives from the white tone to the undersides of the leaves. It is a medium to large deciduous tree growing up to 10–30 m tall, with a
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"Green Willow" is a Japanese ghost story in which a young samurai falls in love with a woman called Green Willow who has a close spiritual connection with a willow tree. [77] "The Willow Wife" is another, not dissimilar tale. [78] "Wisdom of the Willow Tree" is an Osage Nation story in which a young man seeks answers from a willow tree ...
Entoleuca mammata is a species of fungus in the genus Entoleuca.It is responsible for the plant disease hypoxylon canker in hardwood trees such as quaking aspen (Populus tremuloides) [1] and other aspens and poplars, [2] Salix myrsinifolia [1] and other willow species, [1] [2] rowan (Sorbus aucuparia), [1] Sitka alder (Alnus viridis), [2] birch (Betula spp.), [2] apple (Malus spp.), [2] oak ...
A willow flute. A small number of cultivars have been selected for garden use. The most common is S. caprea 'Kilmarnock', discovered by James Smith, with stiffly pendulous shoots forming a mop-head; it is a male clone. A similar female clone is S. caprea 'Weeping Sally'.
The impact of Hurricanes Irma in 2017, Ian in 2022 and Milton in 2024 on trees already weakened from years of citrus greening disease "has led Alico to conclude that growing citrus is no longer ...