Parlatoria theae scorecard

2001
Contributor(s):
Impact
SpreadNotesScore
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 Has been eradicated from CA; occurs in HI and some eastern and southern parts of the U.S., originates in the Far East; does not appear to be limited by environmental conditions are much as some other scale species. 5
DamageNotesScore
Ecological Increased insecticide usage would result to manage this pest if it established - this could threaten environmental quality. 1
Agricultural Many hosts within Rhamnaceae and Theaceae families. Significant pest of apple, pear, tea / Camellia & citrus. Could be damaging to several important CA industries. 4
Infrastructure 0
Cultural Impacts on home production of fruit. 1
Health 0
BenefitNotesScore
Ecological A few native plants could be affected. 1
Agricultural 0
Infrastructure 0
Cultural 0
Benefit Health 0
Ability to Respond
Ease of ResponseNotesScore
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. 4
Tools in PlaceNotesScore
Entry A-rated pest from CDFA. 5
Control A-rated pest from CDFA. 5
Outreach Not on the radar screen of most. 0
Scorecard Totals
Impact Total:
13
[Impact] = ([Spread] + [Damage] - [Benefit])
Ability to Respond Total:
18
[Ability to Respond] = ([Ease of Response] + [Tools in Place])
Confidence
Confidence:  high
Notes: