Pest & Disease Management Factsheets

Factsheets with detailed information on how to recognise and deal with the most common plant pests and diseases.

Ornamentals P&D Factsheets

Pest & Disease Factsheet: Winter moths

Pest & Disease Factsheet: Winter moths

This group of pests can damage commercial fruit and forestry trees as well as ornamental crops.

Pest & Disease Management - Green manure

Pest & Disease Management - Green manure

Additional crop benefits for growers make this an increasingly popular option as a biofumiagant.

Pest & Disease Factsheet - Sciarid flies

Pest & Disease Factsheet - Sciarid flies

These pests transmit diseases that affect growth in ornamental crops and can even kill plants.

Pest & Disease Factsheet - leaf miners on ornamental crops

Pest & Disease Factsheet - leaf miners on ornamental crops

Watch for distinctive damage in ornamental crops.

Pest & Disease Factsheet - Tarsonemid & eriophyid mites

Pest & Disease Factsheet - Tarsonemid & eriophyid mites

These microscopic pests that are difficult to spot should be tackled with acaricides and predators.

Pest and Disease Factsheet - Whiteflies on ornamentals crops

Pest and Disease Factsheet - Whiteflies on ornamentals crops

How to identify and control these sap-sucking insects of protected and outdoor crops.


Fresh Produce P&D Factsheets

Pest and disease management - Powdery mildew in edible field crops

Pest and disease management - Powdery mildew in edible field crops

Powdery mildew in field crops, by Professor Geoffrey Dixon

Pest & disease factsheet - Mycosphaerella brassicicola (ring spot)

Pest & disease factsheet - Mycosphaerella brassicicola (ring spot)

Disease profile for field vegetable growers, by Professor Geoffrey Dixon.

Pest & Disease Management - Leptosphaeria maculans (Phoma leaf spot) on field vegetable crops

Pest & Disease Management - Leptosphaeria maculans (Phoma leaf spot) on field vegetable crops

Disease profile for field vegetable growers, by Professor Geoffrey Dixon.

Pest & Disease Management - Downy mildews on field vegetable crops

Pest & Disease Management - Downy mildews on field vegetable crops

These pathogens are characterised by sporulating on the under-surfaces of leaves with chlorotic and necrotic areas found on the upper surfaces, writes Geoffrey Dixon.

Pest & disease factsheet - Botrytis (Onion neck rot)

Pest & disease factsheet - Botrytis (Onion neck rot)

Disease profile for field vegetable growers, by Professor Geoffrey Dixon.

Pest & Disease Management - Grey mould on edible field crops

Pest & Disease Management - Grey mould on edible field crops

This disease compromises brassica, pea and bean field crop quality, Professor Geoffrey Dixon warns.


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Pest & Disease Management - Compost tea

Pest & Disease Management - Compost tea

Ingredients and processes have been refined.

Pest and Disease Factsheet -  Leafhoppers, capsids, lace bugs & sap suckers

Pest and Disease Factsheet - Leafhoppers, capsids, lace bugs & sap suckers

Leafhoppers, capsids, froghoppers, lace bugs and psyllids are characterised by piercing and sucking mouthparts and hardened forewings that form a protective shield when folded over the abdomen.

Pest & Disease Factsheet - Peach leaf curl

Pest & Disease Factsheet - Peach leaf curl

Growers of fruit and ornamental trees need to be aware of this disfiguring disease.

Pest & Disease Factsheet - Botrytis on ornamentals crops

Pest & Disease Factsheet - Botrytis on ornamentals crops

Tight controls can help to reduce disease risk.

Pest & Disease Management - Fungal leaf spots on ornamental crops

Pest & Disease Management - Fungal leaf spots on ornamental crops

Control is needed to prevent economic losses in year-round ornamental crops.

Pest & Disease Factsheet - Vine weevil

Pest & Disease Factsheet - Vine weevil

Avoid costly damage by this serious plant pest.


Pest & Disease Factsheet - Mealybugs

Pest & Disease Factsheet - Mealybugs

Vines, tomatoes and tropical plants are among those at risk.

Pest & Disease Factsheet - Bacterial and fungal canker

Pest & Disease Factsheet - Bacterial and fungal canker

A wide range of nursery stock can be susceptible to potential damage from various cankers.

Pest & Disease Factsheet - Spider mites

Pest & Disease Factsheet - Spider mites

Defences for protected and outdoor ornamentals.

Pest & Disease Management - Adjuvants

Pest & Disease Management - Adjuvants

Adjuvants are substances that can be added to the spray tank to modify a pesticide and/or spray mixture's performance.

Pest & Disease Management - Clubroot disease on brassica crops

Pest & Disease Management - Clubroot disease on brassica crops

Plasmodiophora brassicae can be a problem for all brassica varieties, Professor Geoffrey Dixon warns.

Pest & Disease Management - Lettuce downy mildew

Pest & Disease Management - Lettuce downy mildew

Bremia lactucae can be a major problem for field vegetable growers, Professor Geoffrey Dixon warns.

Pest & Disease Management - Fusarium patch

Pest & Disease Management - Fusarium patch

Avoid damage to ornamental lawns and sports turf

Pest & Disease Factsheet - Moles on ornamentals crops

Pest & Disease Factsheet - Moles on ornamentals crops

Protect against root damage caused by tunnelling.

Pest & Disease Factsheet - Plane anthracnose

Pest & Disease Factsheet - Plane anthracnose

Take action to avoid this disease causing dieback and rendering plants unsaleable

Pest and disease management - Phytophthora root rots

Pest and disease management - Phytophthora root rots

Treatments to defend against these pathogens should be used alongside good hygiene practice.

Pest & Disease Factsheet - Needle blights

Pest & Disease Factsheet - Needle blights

Prevalent in wet, humid conditions and particularly on susceptible crops grown under overhead irrigation, tip blights can adversely affect a range of conifer species.

Pest & Disease Factsheet - Wilt on ornamentals crops

Pest & Disease Factsheet - Wilt on ornamentals crops

Poor husbandry, physical damage to roots and various diseases can all cause water deficit in leaves and non-woody stems of plants.

Pest & Disease Management - Caterpillars affecting ornamentals growers

Pest & Disease Management - Caterpillars affecting ornamentals growers

Control strategies mainly focus on larval stages.

Pest & disease Factsheet - Powdery mildew affecting ornamentals crops

Pest & disease Factsheet - Powdery mildew affecting ornamentals crops

Accurate identification is key to tackling this serious plant disease.

Pest & Disease Factsheet- Beetles affecting ornamentals crop production

Pest & Disease Factsheet- Beetles affecting ornamentals crop production

There are more than a million beetle species, pests and beneficials, such as ladybirds, rove beetles and ground beetles. Depending on the species, adults can cause as much damage to ornamental plants and turf as larvae.

Pest & disease management - Aphids on protected crops

Pest & disease management - Aphids on protected crops

Rapid maturation and feeding damage on ornamental plants contribute to aphids' importance as pests.

Pest & Disease Factsheet - Downy mildew affecting ornamentals crops

Pest & Disease Factsheet - Downy mildew affecting ornamentals crops

This fungal disease relishes cool, humid conditions.

Pest & disease factsheet - Leaf and stem nematodes

Pest & disease factsheet - Leaf and stem nematodes

Eelworms can cause plant damage across a range of nursery stock, bulbs and herbaceous species.

Pest and disease management - Damping off

Pest and disease management - Damping off

Good site hygiene is crucial for effective control.

Notifiable pests & diseases

Notifiable pests & diseases

Import controls and nursery inspections are crucial tools for keeping stock healthy and enabling sales.

Pest & disease management - slugs and snails on ornamentals crops

Pest & disease management - slugs and snails on ornamentals crops

Minute teeth cause major damage to plant material.

Pest & disease factsheet - Black root rot in ornamentals production

Pest & disease factsheet - Black root rot in ornamentals production

This disease caused by soil-dwelling fungus can impact a wide range of ornamental plant species.

Pest and disease factsheet - Scale insects on ornamentals crops

Pest and disease factsheet - Scale insects on ornamentals crops

The sedentary nature of feeding adult scale insects should make them a relatively easy pest to control but the difficulty lies in their waxy scales, which protect against predators and most contact insecticides.

Pest & Disease Factsheet - Rodenticides

Pest & Disease Factsheet - Rodenticides

Responsible use in ornamental horticulture.

Pest & Disease Management - Scab on ornamentals crops

Pest & Disease Management - Scab on ornamentals crops

Apple and pear trees are among those at risk

Pest & Disease Factsheet - White mould on field vegetable crops

Pest & Disease Factsheet - White mould on field vegetable crops

Disease profile for field vegetable growers, by Professor Geoffrey Dixon.

Pest & Disease Management - Thrips affecting ornamentals crops

Pest & Disease Management - Thrips affecting ornamentals crops

These pests pose a threat to many crops worldwide.

Pest & Disease Factsheet - Puccinia allii on allium crops

Pest & Disease Factsheet - Puccinia allii on allium crops

Disease profile for field vegetable growers, by Professor Geoffrey Dixon

Pest and disease factsheet - Pear leaf blister mite

Pest and disease factsheet - Pear leaf blister mite

This widespread pear pest can also attack apple trees.

Pest & Disease Management - Box blight

Pest & Disease Management - Box blight

This disease causes leaves to turn brown and fall.

Pest and disease factsheet - Rust affecting ornamentals crops

Pest and disease factsheet - Rust affecting ornamentals crops

Infections can spread swiftly and damage crops.

Pest & Disease Factsheet - Red thread

Pest & Disease Factsheet - Red thread

The risk of this fungal infection on sports and amenity turf can be lowered through careful management.

Pest & Disease Management - Sooty moulds

Pest & Disease Management - Sooty moulds

Sooty moulds can take up levels of management time out of all proportion to the actual damage that they do to plants.

Pest & Disease Management - Honey fungus

Pest & Disease Management - Honey fungus

With action difficult and labour intensive, accurate identification of this root disease is key to tackling infection.

Pest & Disease Management - Ash dieback

Pest & Disease Management - Ash dieback

Ash dieback is caused primarily by the fungal disease Chalara fraxinea. The number of infected trees in Europe has risen over the past few years, partly due to wet summer weather.

Pest & Disease Management - Dutch elm disease

Pest & Disease Management - Dutch elm disease

Dutch elm disease is a fungal wilt spread by the elm bark beetles Scolytus scolytus and Scolytus multi-striatus.

Pest & Disease Management - Phytophthora ramorum

Pest & Disease Management - Phytophthora ramorum

Sudden oak death has caused extensive damage to a wide range of hosts on both sides of the Atlantic.

Pest & Disease Management - Wild rabbits

Pest & Disease Management - Wild rabbits

The animal's fast reproduction makes eradication impractical, but cooperative effort can limit crop damage.

Pest & Disease Management - Giant polypore

Pest & Disease Management - Giant polypore

This wood decay fungus can damage trees internally before any external evidence has been noticed.

Pest & Disease Management - Roe, fallow and muntjac deer

Pest & Disease Management - Roe, fallow and muntjac deer

Young shoots on plants are susceptible to grazing damage while bucks' antlers can harm bark.

Pest & Disease Management - Beech bark disease

Pest & Disease Management - Beech bark disease

Beech bark disease is most likely to attack trees with trunks that are more than 20cm in diameter, although it can also be a problem on young plantations.

Pest and disease factsheet - Leaf miners

Pest and disease factsheet - Leaf miners

These larvae damage leaves on ornamental crops.

Pest and disease management - Sciarid fly

Pest and disease management - Sciarid fly

This pest can transmit a range of diseases.

Pest and disease Factsheet - Turf pests - Risks posed by leatherjackets and chafer grubs

Pest and disease Factsheet - Turf pests - Risks posed by leatherjackets and chafer grubs

Soil-dwelling larvae of chafer beetles and crane flies are serious turf pests, feeding unseen in the topsoil layer beneath lawns, golf courses and sports fields.

FERA PLANT PEST FACTSHEET: Banded-winged whitefly (Trialeurodes abutiloneus)

FERA PLANT PEST FACTSHEET: Banded-winged whitefly (Trialeurodes abutiloneus)

FERA PLANT PEST FACTSHEET: Lemon tree borer (Oemona hirta)

FERA PLANT PEST FACTSHEET: Lemon tree borer (Oemona hirta)

FERA PLANT PEST FACTSHEET: Blueberry gall midge (Dasineura oxycoccana)

FERA PLANT PEST FACTSHEET: Blueberry gall midge (Dasineura oxycoccana)

A serious threat to Lawson's cypress (Chamaecyparis lawsoniana) - Phytophthora lateralis

A serious threat to Lawson's cypress (Chamaecyparis lawsoniana) - Phytophthora lateralis

FERA PLANT PEST FACTSHEET: Phytophthora kernoviae

FERA PLANT PEST FACTSHEET: Phytophthora kernoviae

FERA PLANT PEST FACTSHEET: Potato flea beetles (Epitrix species)

FERA PLANT PEST FACTSHEET: Potato flea beetles (Epitrix species)

FERA PLANT PEST FACTSHEET: Wheat Bug (Nysius huttoni)

FERA PLANT PEST FACTSHEET: Wheat Bug (Nysius huttoni)

FERA PLANT PEST FACTSHEET: Eggplant Borer (Leucinodes orbonalis)

FERA PLANT PEST FACTSHEET: Eggplant Borer (Leucinodes orbonalis)

FERA PLANT PEST FACTSHEET: Citrus longhorn beetle  (Anoplophora chinensis)

FERA PLANT PEST FACTSHEET: Citrus longhorn beetle (Anoplophora chinensis)

Pest & Disease Factsheet - Browntail and gypsy moths

Pest & Disease Factsheet - Browntail and gypsy moths

Browntail and gypsy moth caterpillars can cause much damage to trees, but their risk to human health poses a bigger problem to local authorities.