Diamond Willow Fungus
The diamond-leaf willow is also known by its scientific name of Salix pulchra and is a shrub with glossy, diamond-shaped leaves. This shrub is commonly found along rivers and lakes, making it susceptible to fungal disease development. Does this Spark an idea?
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Types
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Willow trees are susceptible to rust, which is a fungal disease. Rust is caused by the fungus Melampsora, which usually occurs in middle to late summer. This disease spreads by spores carried on the wind to infect other trees. The fungus Venturia saliciperda causes willow shoot blight, which affects young, immature shoots. Wet weather favors the development of willow shoot blight.
Symptoms
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The symptoms associated with rust on diamond willow trees includes pustules of yellow and orange spores on leaves, which later turn brown and crusty. Willow shoot blight causes shriveling of young shoots and leaves, which turn black. Young trees are most susceptible to the effects of shoot blight, as older trees must suffer from re-infection for several years to sustain lasting damage.
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Control
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Fungal diseases on diamond willow trees are best controlled by pruning out infected shoots and removing and destroying fallen leaves. Applying fungicides to affected willow trees also helps eliminate and control fungal diseases.
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