• Pest is introduced

• Plants for planting (except seeds bulbs and tubers)
• Fruits or vegetables
• Plants for planting (with soil)

• Plants for planting (except seeds bulbs and tubers)
• Fruits or vegetables

× Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Close Likelihood [1 - 5]				4
× Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Close Spread [1 - 5]			3
× Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Close Impact [1 - 5]		2
× Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Close Value at Risk [1 - 5]				4
× Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Close Likelihood x Impact [1 - 25]	8
× UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information Close UK Relative Risk Rating [1 - 125]	32

Key mitigation for pest

Vitis spp. are prohibited from the known distribution of the pest. Pest is in legislation.

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

× Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Close Likelihood [1 - 5]				4
× Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Close Spread [1 - 5]			3
× Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Close Impact [1 - 5]		2
× Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Close Value at Risk [1 - 5]				4
× Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Close Likelihood x Impact [1 - 25]	8
× UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information Close UK Relative Risk Rating [1 - 125]	32

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Country / Territory			Status			Notes
Europe
	United Kingdom		Absent
North America
	United States		Present
South America
	Peru		Present
Oceania
	Australia		Present
	New Zealand		Present
Asia
	China		Present
	India		Present
	Iraq		Present
	Japan		Present
	South Korea		Present
Central America
	Bermuda		Present
	Cuba		Present

• Mite

Vitis spp. Total protected cultivation

• Acer L.
• Broussonetia papyrifera (L.) Vent.
• Carica papaya L.
• Ceratonia siliqua L.
• Cinnamomum camphora Sieb./Nees & Eberm./Presl.
• Citrus limon (Linnaeus) N.L.Burman
• Citrus maxima (Burman) Merrill
• Citrus sinensis (Linnaeus) Osbeck
• Citrus unshiu Marcovitch
• Clausena lansium (Lour.) Skeels
• Diospyros kaki L.
• Elaeagnus L.
• Euphorbia pulcherrima Willd. ex Klotzsch
• Ficus erecta Thunb.
• Ficus retusa Linnaeus
• Fragaria ananassa (F. x ananassa) Duch.
• Hevea brasiliensis (Willd. Ex A.Juss.) Muell.Arg.
• Hydrangea L.
• Litsea glutinosa (Lour.) C.B.Robins.
• Solanum lycopersicum L.
• Malus domestica Borkhausen
• Morus L.
• Oxalis corniculata L.
• Paulownia tomentosa (Thunb.) Steud.
• Persea americana Mill.
• Phaseolus L.
• Platanus L.
• Populus L.
• Prunus L.
• Prunus mume Sieb. & Zucc.
• Prunus persica Batsch
• Psidium guajava L.
• Pyracantha M.J.Roem.
• Rhapis excelsa (Thunb.) Henry Ex Rehd.
• Rhododendron L.
• Robinia pseudoacacia L.
• Rosa L.
• Rubus L.
• Sassafras albidum (Nutt.) Nees
• Ternstroemia gymnanthera (Wight & Arn.) Sprague
• Vitis vinifera L.
• Citrus
• Actinidia deliciosa (A. Chev.) Liang & A.R. Ferg.

• Both protected crops and outdoor production

• N/A

PRA Availability

PRA not available

Regulated quarantine pest (Great Britain) and in specific measures for Northern Ireland

Action

Statutory action on interceptions and outbreaks.

General Comments

A polyphagous spider mite found in Asia, the Americas and Oceania causing feeding damage which results in defoliation and reduced yields. To date impacts reported on crops of relevance to the UK have been limited to grapevines, but there is the potential it could represent a threat to other hosts if it were to establish.

Key uncertainty for pest

Impacts on other hosts which are of more importance to the UK.

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution