Vinca major Scorecard

Species:  Vinca major

Common Name:  big periwinkle

Scorecard created on
Last Updated on

Results

Impact Total:8 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:9 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateNot well documented.2
Spread AmountNorth Coast Ranges, northern Sierra Nevada foothills, Central Valley, San Francisco Bay region, South Coast Ranges, and South Coast, to 1500m (DiTomaso).3
DamageNotesScore
EcologicalAlters natural erosional processes along drainages, thus altering hydrology. Forms a dense carpet and excludes native vegetation. Avoided by wildlife (Cal-IPC). Rated moderate in Cal-IPC inventory.3
AgriculturalMay be an intermediate host for Xylella, the organism that cause's Pierce's Disease (Cal-IPC).4
Infrastructure0
Cultural0
Health0
BenefitNotesScore
Ecological0
AgriculturalPopular ornamental plant, still widely sold (Conser pers obs).4
Infrastructure0
Cultural0
Health0
Total8

Ability to Respond

Ease of ResponseNotesScore
DetectionEasy to detect.5
ControlPersistent manual removal can control the spread Vinca (DiTomaso).2
Tools in PlaceNotesScore
Entry0
Control0
OutreachOn Cal-IPC list and also included on Don't Plant a Pest brochure.2
Total9

References