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Identify tree pests and diseases by tree species

If you know what species of tree has a problem you can narrow down the options using this guide.

A | B | C | D | E | F | G | H | J | L | M | N | O | P | R | S | W | Y

Not sure which tree you have - use our tree name finder

A

Alder (Alnus) - Asian longhorn beetle | phytophthora alni

Apple (Malus domestica) - Citrus longhorn beetle

Ash (Fraxinus excelsior) - Asian longhorn beetle | Chalara ash dieback | Emerald ash borer

B

Beech (Fagus) - Asian longhorn beetle | Citrus longhorn beetle | Phytophthora kenoviae | Phytophthora ramorum

Birch (Betula) - Asian longhorn beetle | Citrus longhorn beetle

C

Cedar (Cedrus) - Pine wood nematode

Cherry (Prunus) - Asian longhorn beetle | Citrus longhorn beetle

Corsican pine (Pinus nigra) - Dothistroma needle blight

Cypress tree (Cupressus) -  no significant threats

D

Douglas fir (Pseudotsuga menziesii) - Phytophthora ramorum | Pine tree lappet moth

E

Elder (Sambucus nigra) - no significant threats

Elm (ulmus) - Asian longhorn beetle | Citrus longhorn beetle | Dutch elm disease

F

Field maple (Acer campestre) - no significant threats

G

Grand fir (Abies grandis) - no significant threats

H

Hawthorn (Crataegus monogyna) - no significant threats

Hazel (Corylus) - Asian longhorn beetle | Citrus longhorn beetle

Hornbeam (Carpinus) - Asian longhorn beetle | Citrus longhorn beetle 

Horse chestnut (Aesculus hippocastanum) - Asian longhorn beetle | Citrus longhorn beetle | Horse chestnut leaf miner | Phytphthora ramorum

J

Juniper (Juniperus communis) - Phytophthora austrocedrae

L

Larch (Larix) - Phytophthora ramorum | Pine wood nematode | Pine processionary moth

Lawson cypress (Chamaecyparis lawsoniana) - Phytopthora austrocedrae | Phytophthora lateralis

Lodgepole pine (pinus contorta) - Dothistroma needle blight | Pine wood nematode | Pine processionary moth

M

Maple (Acer saccharum) - Asian longhorn beetle | Citrus longhorn beetle Sweet chestnut blight

Mountain ash (Sorbus) - Asian longhorn beetle

N

Noble fir (Abies procera) - no significant threats

Norway spruce (Picea abies) - Spruce bark beetle | 8-toothed spruce bark beetle | Pine tree lappet moth | Pine wood nematode

O

Oak pedunculate (Quercus robur) -  Acute oak decline | Asian longhorn beetle | Sweet chestnut blight | Oak pinhole borer | Oak processionary moth |Phytophthora kernoviae

Oak sessile (Quercus petraea) - Sweet chestnut blight | Oak pinhole borer | Oak processionary moth

Oak turkey (Quercus cerris) - Phytphthora ramorum 

Oak holm (Quercus ilex) - Sweet chestnut blight | Oak pinhole borer | Oak processionary moth | Phytophthora kernoviae

P

Pear (Pyrus) - Citrus longhorn beetle

Plane (Platanus) - Asian longhorn beetle | Citrus longhorn beetle

Plum (Prunus) - Asian longhorn beetle 

Poplar (Populus) - Asian longhorn beetle | Citrus longhorn beetle

R

Rowan (Sorbus aucuparia) - no significant threats

S

Scots pine (Pinus sylvestris) -Dothistroma needle blight | Pine tree lappet moth | Pine wood nematode

Sitka spruce (Picea sitchensis) - Spruce bark beetle | 8-toothed spruce bark beetle | Pine tree lappet moth | Pine wood nematode | Phytophthora ramorum

Sweet chestnut (Castanea sativa) - Sweet chestnut blight | Oriental chestnut gall wasp

Sycamore (Acer pseudoplatanus) - Asian longhorn beetle

W

Western hemlock (Tsuga heterophylla) - no significant threats

Western red cedar (Thuja plicata) - no significant threats

Willow (Salix) - Asian longhorn beetle | Citrus longhorn beetle

Y

Yew (Taxus baccata) - Phytophthora lateralis

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Last updated: 18th August 2016