Salvinia molesta Scorecard

Species:  Salvinia molesta

Common Name:  giant salvinia

Scorecard created on
Last Updated on

Results

Impact Total:23 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:15 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateRapid spread in waterways. Vegetative reproduction primarily.4
Spread AmountAlready a serious problem freshwater to slightly brackish habitats, potential to get worse.4
DamageNotesScore
EcologicalPotential to out compete native species, impedes migration of anadromous fish. Rated high in the Cal-IPC Inventory5
AgriculturalImpact to commerical fisheries.2
Infrastructure3
CulturalImpact to sport fishing.3
HealthProvides good mosquito habitat.2
BenefitNotesScore
Ecological0
Agricultural0
Infrastructure0
CulturalPopular aquarium plant.0
HealthUsed as health supplement.0
Total23

Ability to Respond

Ease of ResponseNotesScore
DetectionDifficult to detect until established.2
ControlEradication difficult once established. Vegetative fragments are dispersed by mechanical removal.1
Tools in PlaceNotesScore
EntryQuarantine - CDFA list "A"4
ControlNoxious weed, some biocontrol.5
OutreachOn CDFA and Cal-IPC lists.3
Total15

References

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