Ability to Respond Total:18 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Natural spread is slower than with some insects that can fly effectively, flight with scale insects is of short range, movement would be facilitated with human activities and on ornamental plants.
3
Spread Amount
A tropical species (origin in southern Asia) - not presently in CA; occurs in FL and HI and is a pest in those areas.
3
Damage
Notes
Score
Ecological
Increased insecticide usage would result to manage this pest if it established - this could threaten environmental quality.
1
Agricultural
Has many woody plant hosts; ornamental plant & fruit industries would be at risk in CA.
4
Infrastructure
0
Cultural
Impacts on home gardens, landscapes, ornamentals, orchards.
1
Health
0
Benefit
Notes
Score
Ecological
Would infest several native plants in tropical areas.
2
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
10
Ability to Respond
Ease of Response
Notes
Score
Detection
Scales overall are difficult to sample and detect - this is due to their small size, cryptic habits.
4
Control
Scales overall are difficult to control, they have a protective covering which protects them from non-specialized natural enemies and from insecticides.
