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What is Mycorrhiza? It is a fungus found within the soil among the roots of plants. The term...

Trees are very important to bats; currently the UK has 18 species of Bat.  Below is a list of the...

Phenology To put simply phenology is the timing of a natural process throughout the 4 seasons. A...

Oyster Mushroom - Pleurotus ostreatus Description Muscle shaped bracket up to 20 cm across The...

Leaning Trees Many trees lean, however it does not always mean that the tree is unsafe. Trees can...

Life Belt – Bulging Wood You may have come across a tree which has the following distinct...

The following Arboricultural Associations list, of commonly used terminology/abbreviations and...

Burrs? What is a Burr? You may have noticed that some old trees have large lumps on the trunk...

Chicken Of The Woods This tree can be found mainly on broad-leaved trees. It is vary rare to find...

Tinder Fungus - Fomes fomentarius Host trees • Beech • Poplar • Birch Description • Perennial...

Currently Effected Counties OPM is established in most of greater London and surrounding counties....

Shoot Blight Of Cedar - Sirococcus strobilinus Current Situation A number of locations throughout...

Ramorum Disease Of Larch Ramorum is a fungal pathogen Spores from the fungal pathogen gain entry...

Oak Wilt - Ceratocystis faqacearum This is a fungal pathogen called Ceratocystis faqacearum It is...

Oak Wilt - Ceratocystis fagacearum This disease is caused by a fungal pathogen called Ceratocystis...

Elm Zigzag Sawfly Biology - This pest has spread rapidly throughout Europe! First recorded in...

Asian Longhorn Beetle Anoplophora glabripennis This beetle native origin is found in parts of...

Emerald Ash Borer Agrilus planipennis This is not yet present in the UK but has had devastating...

Acute Oak Decline This is a bacterial infection The disease was believed to be first established...

Massaria (S. platani) This disease was noted in London 2009 by people who manage trees. London...

Perenniporia fraxinea This fungus is not common, its is found on various broad leaved trees, in...

Inonotus hispidus This disease can be found on mainly living trees, very rarely dead trees. Its...

Chicken of the Woods Laetiporus sulphureus The fungus fruits from May - September (annually). This...

How Do Trees Compartmentalize Against Decay? The diagram below shows the different cells that make...

Fireblight (Erwinia amylovora) Bacterial infection NOT Fungal. This disease is common and effects...

Meripilus giganteus (giant polypore) This fungus is commonly found at the base of the following...

Ustulina deusta This is a very serious fungus, because it is hard to spot, and in many cases an...

There is a popular misconception that tree roots grow deep down in the soil in order to anchor the...

A healthy tree is an undamaged self optimized structure with greater balance of stored energy...

It is to act in a professional manner consistent with accepted professional standards of the...

Arboriculture is the production and management of trees and shrubs in urban and rural environments...

It can be a difficult process when choosing a tree surgeon or contractor, hopefully the form I...

The Life Stages Of A Tree March 18th 2018 Formative – At this stage a tree will use most of its...

Phytophthora ramorum (Bleeding Canker) This is a fungus like pathogen The fungus can be spread...

Ash Dieback (Chalara)   The disease was first confirmed in Britain in 2012. The disease is from a...

Dangerous Trees It is nearly always the responsibility of the land owner to ensure the safety of...

The best time to prune your tree is when the tree is dormant, which is in late autumn or winter....

There are various types of fungi that will decay living tissue on your tree. Each month I shall be...

March 2nd 2018, Planting a tree in your garden is a wonderful thing, and the enjoyment of watching...