Candidatus Liberibacter sp. Scorecard

Species:  Candidatus Liberibacter sp.

Common Name:  Huanglongbing Disease of Citrus

Scorecard created on
Last Updated on

Results

Impact Total:18 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:17 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateTransmitted by Asian Citrus Psyllid w/c is currently under eradication efforts in SoCal by CDFA/USDA. Absent agressive management, the psyllid can spread rapidly, on the order of 100 miles a yr. naturally & much faster if spread through produce shipments.5
Spread AmountPotential to impact all citrus producing climates where vector present5
DamageNotesScore
EcologicalMost California non-rutacean native plants are not susceptable0
AgriculturalHLB has decimated Floridas citrus crops, and has potential to cause major daqmage to citrus crops and nursery stock in CA.5
Infrastructure0
CulturalCitrus is identified with California; major impact on lifestyle choices and physical appearance of state.3
Health0
BenefitNotesScore
Ecological0
Agricultural0
Infrastructure0
CulturalHLB could severely damage gardening and landscaping with citrus.0
Health0
Total18

Ability to Respond

Ease of ResponseNotesScore
DetectionInfected trees are initially latent and asymptomatic. Symptoms are not expressed until after the 3rd year after innoculation1
ControlTreatment of HLB is cheap and easy through roguing when symtoms are expressed, but prevention of infestation of replanted trees is uncertain and very difficult; may lead to loss of orchard.1
Tools in PlaceNotesScore
EntryStrong quarantine laws are in affect on citrus to prevent introduction of HLB.5
ControlAs a CDFA "A" rated disease, all countries are mandated to eradicate HLB when found5
OutreachCDFA has undertaken extensive outreach to educate the industry and public about the potential impacts of HLB and effective prevention and management.5
Total17

References

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