Factfiles
Common Pests and Diseases
There are many different types of Pests and Diseases that can affect trees. Described here are some of the more common ones.
Rhododendron Bud Blast
The symptoms of bud blast can be recognised when the buds fail to open and internally dry up, turning brown before they die.
Grey Mould
This is a grey, sometimes white, fluffy fungal growth which develops in the infected areas, causing die back on the plant.
Tar Spot of Sycamore
Large, slightly raised, black shiny blotches that develop on the leaves assist with recognising sycamore tar spots. The tar spots can measure up to about 1.5 centimetres.
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Fireblight
To establish whether a tree has fireblight, the following systems should be recognised. Firstly, the flowers will wilt and die back, followed by the leaves, branches and then the stem.
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Beech Bark Disease
Beech bark disease is seen in association with beech bark scale. It can be recognised by identifying small areas of bark about a few centimetres in diameter, which die off.
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Giant Polypore Fungus
To recognise the symptoms of polypore fungus, a large golden brown fungus should be seen around the base of the tree.
Commom Mistletoe
This infection only occurs in the south of Yorkshire and other parts of the world, but nowhere else in Britain.
Witches Broom on Birch
Witches broom can be identified when twigs develop clustered together in the crown of the tree.
Water Willow Mark Disease
Water mark disease symptoms can be seen in mid to late spring. The leaves will turn reddish and wither, thus the affected areas of the tree will slowly deteriorate and die.
Email: info@clarkstreesurgery.co.uk ~ Telephone: 01456 450270