Xylophilus ampelinus (Xanthomonas ampelina) Scorecard

Common Name:  Grapevine Bacterial Blight

Scorecard created on
Last Updated on

Results

Impact Total:10 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:14 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:Medium

Confidence Notes:

Impact

SpreadNotesScore
Spread RateFirst noted Crete, Greece, 1969. Spread to France, Greece, Italy, Moldova, Portugal (unconfirmed), Slovenia, Spain and Turkey (eradicated).3
Spread AmountGrapevines only known host. Spread on infected propagative material and by pruning equipment. Requires moist, humid, warm conditions (overhead irrigation).2
DamageNotesScore
EcologicalOnly infects grapevines. Wild grapevines may be susceptible.1
AgriculturalSevere infection of susceptible cultivars can lead to serious harvest losses of 70% and more. Benign if controlled by copper sprays3
Infrastructure0
CulturalMay impact tourism of vincultural areas.1
Health0
BenefitNotesScore
Ecological0
Agricultural0
Infrastructure0
Cultural0
Health0
Total10

Ability to Respond

Ease of ResponseNotesScore
DetectionStandard bacteriological tests and three serological techniques exist for rapid identification. Visible symptoms appear in 2nd year of growth following infection. Natural dispersal is limited to the vineyard and immediately surrounding area.4
ControlControl can be obtained only through viticultural practices.4
Tools in PlaceNotesScore
EntryX. ampelinus is an EPPO A2 quarantine organism (OEPP/EPPO, 1984) and is also of quarantine significance for NAPPO and the IAPSC. if material is imported from areas where the disease is known to occur, nursery inspections are necessary4
ControlNo special regulatory measures for detection in propagative stock or production agriculture other than clean stock program.1
OutreachScientific and regulatory community aware of pest.1
Total14