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Welcome to The Green Man Arboricultural Consultancy

This website supports the consultancy business based in North Wales and which operates throughout the United Kingdom providing a wide range of arboricultural services including: home buyers tree reports, tree condition reports, development site surveys and reports, woodland assessment and management plans and general advice relating to trees.

For further information or to discuss your requirements please contact us on: 01978 821 851/ 07981 912 162 or via

Saturday, 7 May 2016

Pests & Diseases - Ustulina deusta

I recently came across this tree at work. It is infected with the decay pathogen Ustulina deusta, a very significant fungus that rots the main stem and root systems of trees. It can be very difficult to spot as the fruiting body of the fungus (the bit we see) is small and very discrete. It also can develop just below the soil level against the main stem. It is a constant reminder of the need for detailed inspections of the stem bases of trees as it can be overlooked so easily, although it does seem to have been pretty prevalent on this tree.

Ustulina deusta can result in sudden and catastrophic failure of a tree with no warning or symptoms present in the crown. Many trees infected by fungus rotting their stems and roots will also appear in decline thus aiding identification of an issue with the tree.

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