Ability to Respond Total:21 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Rapid reproduction, rapid growth. Can grow up to 6 inches per day.
4
Spread Amount
Dispersal by humans, birds , squirrels. Very wide host range includes most trees, shrubs, herbacious plants. Especially a problem in riparian corridors and landscaping.
4
Damage
Notes
Score
Ecological
Can kill host. Major compititor with natives.
4
Agricultural
Kills host, problem on horticultural species, viral vector.
3
Infrastructure
1
Cultural
Aesthetic, urban agriculture and gardening impacts.
3
Health
0
Benefit
Notes
Score
Ecological
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
Alleged medicanal value in some Asian cultures.
1
Total
18
Ability to Respond
Ease of Response
Notes
Score
Detection
Easy to see after establishment.
4
Control
Difficult to control once established requires removal of entire host or affected area of host and then monitoring. Fortunately all spread is vegetative as it has not produce viable seed in California.
3
Tools in Place
Notes
Score
Entry
Available on internet. Quarantines, CDFA "A" rating.
5
Control
Mandated eradication program. genus listed as noxious weed.
