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Pest & Disease Factsheets

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

Factsheets

Pest and disease factsheet - Leaf miners

Pest and disease factsheet - Leaf miners

19 June 2014

These larvae damage leaves on ornamental crops.

 
Pest & Disease Management - Tarsonemid and eriophyid mites

Pest & Disease Management - Tarsonemid and eriophyid mites

30 May 2014

These two key groups can cause damage across a variety of ornamental crops.

 
Cankers

Cankers

29 March 2014

Cankers in nursery stock species are characterised by the death of cambium tissue of woody stems, branches or twigs, causing them to sink in.

 
Pest and disease management - Sciarid fly

Pest and disease management - Sciarid fly

28 February 2014

This pest can transmit a range of diseases.

 
Pest and disease management - Phytophthora root rots

Pest and disease management - Phytophthora root rots

30 January 2014

Be alert to prevent damage from these pathogens.

 
Pest & Disease Management - Needle blights

Pest & Disease Management - Needle blights

22 November 2013

Numerous conifer species are potentially at risk.

 
Pest & Disease Management - Vine weevils

Pest & Disease Management - Vine weevils

17 October 2013

Black vine weevil (Otiorhynchus sulcatus) is a serious pest of ornamental nursery stock. The adults feed on susceptible plant foliage, leaving notched edges, and the larvae feed on roots.

 
Pest & Disease Management - Leaf and stem nematodes

Pest & Disease Management - Leaf and stem nematodes

27 September 2013

Eelworms can carry viruses and cause damage by feeding on ornamental crops.

 
Pest & disease management - Powdery mildew

Pest & disease management - Powdery mildew

21 August 2013

The threat to ornamental crops is on the increase.

 
Downy mildew

Downy mildew

25 July 2013

Plants in poorly ventilated structures are vulnerable.

 
Pest & Disease Management - Aphids

Pest & Disease Management - Aphids

27 June 2013

With their pear-shaped bodies, long antennae and a pair of rear-end siphunculi -- or exhaust pipes as they are sometimes described -- aphids are one of the most easily recognised and common glasshouse pests.

 
Pest & Disease Factsheet - Plane anthracnose

Pest & Disease Factsheet - Plane anthracnose

21 February 2013

Foliage damage can render some plants unsellable.

 
Pest & Disease Management - Ash dieback

Pest & Disease Management - Ash dieback

24 January 2013

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. Affected trees have been found in parks, gardens, garden centres, fore...

 
Pest & Disease Management - Scab

Pest & Disease Management - Scab

08 January 2013

This disease attacks woody plants in the Rosaceae family, which includes apples and pears, their ornamental equivalents plus others including amelanchier, aronia, Chaenomeles, cotoneaster, Crataegus, pyracantha and sorbus.

 
Pest & Disease Management - Giant polypore

Pest & Disease Management - Giant polypore

09 November 2012

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

 
Pest & Disease Management - Leafhoppers, capsids and suckers

Pest & Disease Management - Leafhoppers, capsids and suckers

12 October 2012

The piercing and sucking mouthparts of these pests can lead to market rejections of ornamental crops.

 
Pest & Disease Management - Wilt - Water deficit can lead to serious plant damage

Pest & Disease Management - Wilt - Water deficit can lead to serious plant damage

14 September 2012

Poor husbandry, physical damage to roots and various diseases can all cause water deficit in leaves and non-woody stems of plants, leading to loss of turgor pressure in cells and flaccid tissues that we recognise as wilting.

 
Pest & Disease Factsheet - Whitefly

Pest & Disease Factsheet - Whitefly

17 August 2012

Whiteflies are sap-sucking insects that can be found in high numbers on protected crops. They can also attack outdoor crops including brassicas. Not true flies, but in the same order and division as aphids and scale insects, they produce honeydew tha...

 
Pest & Disease Management - Sooty moulds

Pest & Disease Management - Sooty moulds

27 July 2012

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 - Thrips

Pest & Disease Management - Thrips

13 July 2012

As well as attacking a wide range of crops, these pests can also carry major virus diseases.

 
Pest & Disease Factsheet - Slugs and snails

Pest & Disease Factsheet - Slugs and snails

29 June 2012

Feeding by slugs and snails is so economically damaging to farmers, growers and gardeners that millions of pounds have been devoted to finding new ways to combat these molluscan pests.

 
Pest & Disease Management - Beetles

Pest & Disease Management - Beetles

15 June 2012

The genus includes a range of pests whose adults and larvae can do serious damage to ornamental plants.

 
Pest & Disease Factsheet - Scale insects

Pest & Disease Factsheet - Scale insects

01 June 2012

The waxy scales of these pests can protect them from predators and insecticides and damage plant stock.

 
Pest & Disease Management - Moles

Pest & Disease Management - Moles

18 May 2012

Moles are widespread throughout Britain but absent from Ireland. Even small populations can damage sports turf, playing surfaces and amenity lawns, but control may not be necessary in less intensively used or managed areas. The damage is a side-effec...

 
Pest & Disease Management - Beech bark disease

Pest & Disease Management - Beech bark disease

04 May 2012

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. The disease occurs when heavy infestations of beech scale insect (Cryptococcus fagisuga) make e...

 
Pest & Disease Factsheet - Caterpillars

Pest & Disease Factsheet - Caterpillars

20 April 2012

The biting mouthparts of this large group of pests mean that all parts of the plant are at risk of attack.

 
Pest & Disease Management - Wild rabbits

Pest & Disease Management - Wild rabbits

09 March 2012

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

 
Pest & Disease Factsheet - Peach leaf curl

Pest & Disease Factsheet - Peach leaf curl

24 February 2012

Despite its limited impact on plant health, this fungal infection can cause customers to reject plants.

 
Pest & Disease Management - Fusarium patch - A threat to turf when conditions are cold and wet

Pest & Disease Management - Fusarium patch - A threat to turf when conditions are cold and wet

10 February 2012

The most common and damaging pathogen on ornamental lawns and sports turf in the UK is the fungus Microdochium nivale (syn. Fusarium nivale).

 
Pest & Disease Factsheet - Damping off

Pest & Disease Factsheet - Damping off

27 January 2012

This disease kills seedlings by drawing on the nutrients of a host's dead cells, causing plants to collapse.

 
Pest & Disease Management - Phytophthora ramorum

Pest & Disease Management - Phytophthora ramorum

13 January 2012

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

 
Pest & Disease Management - Roe, fallow and muntjac deer

Pest & Disease Management - Roe, fallow and muntjac deer

09 December 2011

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

 
Pest & Disease Management - Honey fungus

Pest & Disease Management - Honey fungus

25 November 2011

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

 
Turf pests - Risks posed by leatherjackets and chafer grubs

Turf pests - Risks posed by leatherjackets and chafer grubs

28 October 2011

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. Chafer grubs also feed on roots of young trees, herbaceous perennials and nursery stock....

 
Pest & Disease Management - Dutch elm disease - Serious outbreaks can be expected every 20 years

Pest & Disease Management - Dutch elm disease - Serious outbreaks can be expected every 20 years

14 October 2011

Dutch elm disease is a fungal wilt spread by the elm bark beetles Scolytus scolytus and Scolytus multi-striatus. Known in the UK since 1927, this disease was considered relatively unimportant until an outbreak of a more aggressive strain (Ophiostoma ...

 
Pest & Disease Factsheet - Red thread

Pest & Disease Factsheet - Red thread

30 September 2011

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

 
Pest & Disease Management - Rust fungi

Pest & Disease Management - Rust fungi

01 September 2011

Pustules make this a relatively simple problem to identify but action must be taken to avoid damage.

 
Pest & Disease Management - Spider mites

Pest & Disease Management - Spider mites

22 July 2011

These troublesome pests can cause problems for growers of protected and outdoor ornamental crops.

 
Black root rot - A wide range of species is susceptible to this disease

Black root rot - A wide range of species is susceptible to this disease

13 May 2011

Cyclamen, Poinsettia, Primula, Impatiens, Begonia, Nicotiana, Geranium and sweet peas are among 120 species in 15 families known to be susceptible to black root rot (Thielaviopsis basicola).

 
Coping with leaf spot

Coping with leaf spot

15 April 2011

How to avoid losses from this common plant disease.

 
Aphids on protected ornamental crops

Aphids on protected ornamental crops

01 April 2011

These easily-recognised glasshouse pests can wreak havoc with plants if they are not properly controlled.

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

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

17 February 2011

Background During November 2010, Acacia sp., Banisteriopsis caapi and Brugmansia sp. plants imported by courier from the USA, were inspected by the Plant Health and Seeds Inspectorate (PHSI) and found to be infested with whiteflies. Samples ...

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

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

01 September 2010

Background The lemon tree borer, Oemona hirta (Fabricius) (Coleoptera: Cerambycidae) is a longhorn beetle native to New Zealand, where it is considered to be one of their most common insects. A single live larva was intercepted in a Wisteria p...

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

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

10 August 2010

Background In June 2008, the Plant Health Service in England and Wales was contacted by a private crop consultant concerned about a cecidomyiid infestation in a blueberry crop ( Vaccinium corymbosum ) at a nursery in Herefordshire. Anecdotal evide...

 
FERA PLANT PEST FACTSHEET: Phytophthora lateralis

FERA PLANT PEST FACTSHEET: Phytophthora lateralis

01 July 2010

What is it and where is it found? Phytophthora lateralis is a fungus-like plant pathogen which causes an often fatal disease of trees, mainly in the genus Chamaecyparis. Lawson s cypress ( C. lawsoniana ) is the primary host. P. lateralis ...

 
FERA PLANT PEST FACTSHEET: Phytophthora ramorum

FERA PLANT PEST FACTSHEET: Phytophthora ramorum

01 May 2010

What is it and where is it found? Phytophthora ramorum is a serious fungus-like pathogen causing damage to a wide range of trees and plants in Europe and the USA. In the EU, P. ramorum has been recorded as present in Belgium, Czech Republic ...

 
FERA PLANT PEST FACTSHEET: Phytophthora kernoviae

FERA PLANT PEST FACTSHEET: Phytophthora kernoviae

01 May 2010

What is it and where is it found? Phytophthora kernoviae is a serious plant pathogen causing diseases of trees and shrubs in UK woodlands, heathlands and managed gardens. The pathogen was first discovered in October 2003 in historic woodland ga...

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

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

20 April 2010

What are they? Five species of flea beetle assigned to the genus Epitrix(Coleoptera: Chrysomelidae ) feed on potatoes ( Solanum tuberosum ) in North America. The common name flea beetle derives from the ability of the adults to jump when dist...

 
FERA PLANT PEST FACTSHEET: Wheat Bug (Nysius huttoni)

FERA PLANT PEST FACTSHEET: Wheat Bug (Nysius huttoni)

20 April 2010

Background While surveying North Warren RSPB Reserve, Suffolk, in September 2007, Heteroptera recorder Nigel Cuming found large numbers of an unfamiliar species of ground bug. Heteroptera experts Bernard Nau and Bill Dolling confirmed the iden...

 
FERA PLANT PEST FACTSHEET: Eggplant Borer (Leucinodes orbonalis)

FERA PLANT PEST FACTSHEET: Eggplant Borer (Leucinodes orbonalis)

20 April 2010

Background Leucinodes orbonalis (Guene ) (Lepidoptera: Crambidae) is frequently intercepted by the Plant Health Service in England and Wales on imports of aubergine from Asia and Africa. Between 1999 and 2008 it was intercepted on 104 occasions...

 
 

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In This Issue

Horticulture Week - 11 July 2014 NEWS: Industry co-working sparks engagement with Government

SARGENT'S SOLUTIONS: Offering clients a glimpse behind the scenes of your work builds satisfaction and PR

KIT TESTS: Tractors

PLANT FOCUS: Leucanthemum

SHOW PREVIEW: Sector prepares for Fruit Focus