Below are listed some of the most common tree diseases and pests currently in the UK:

• Acute oak decline
  Found in oaks in the south and eastern parts of England , discoloration on bark and ‘D’ shape exit holes from oak jewel beetle, can mean rapid decline of tree.
   

• Chalara dieback of ash
  Often younger trees are affected can be spotted by dead tips and dieback in the crown of tree , ends of branches.
   

• Chestnut blight
  discoloration of leaves and peeling of bark on chestnut trees  
   

• Dothistroma needle blight
  Found on Scots pines spotted by discoloration on needles
   

• Dutch elm disease
  Common across England and most elm trees , flaking of bark and dieback of tree crown
  
  Phytophthora

• There are different variations of this disease ,discoloration can be found of conifers and other evergreens
  
  Asian longhorn beetle

• Can affect a number of tree species serious problem across the UK holes around 10mm diameter can be found in trunk and branches
   

• Horse chestnut leaf minor
  A pest that lays its eggs on horse chestnut leaves causing discoloration of leaves. A BIG problem in the UK
   

The above are just a small number of the pests and diseases currently in the UK if you are unsure about your tree you can find some pictures online or feel free to contact us for questions and queries.