Ability to Respond Total:21 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:Medium
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
The adult moth is a good flier; larvae are found in webbing within grape bunches and may be somewhat concealed.
4
Spread Amount
This pest infests areas characterized as dry or temperate; Mediterranean climates appear to be conducive to this pest and as such most of the CA wine grape producing counties are at risk.
5
Damage
Notes
Score
Ecological
Threat to some natives that provide wildlife food source. Increased spray activity caused by the presence of this pest has the potential of environmental effects.
1
Agricultural
Grapes are the primary host for this pest but plants in some 27 other families can also be hosts, examples include barberry, black and red currant, blackberry, carnation, cherry, dogwood, kiwi, nectarine, persimmon, plum, pomegranate, and olive.
4
Infrastructure
0
Cultural
Loss in landscaping and urban agriculture/gardening.
1
Health
0
Benefit
Notes
Score
Ecological
Several plants occurring in natural settings could be damaged, some of these are mentioned in "Agricultural Damage Notes" but also include privet, ivy, Virginia creeper and rosemary.
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
15
Ability to Respond
Ease of Response
Notes
Score
Detection
Adults can be easily sampled with pheromone traps; larvae are somewhat hidden; a statewide pheromone trapping program will be done this season (2010) to determine the extent of the infestation and whether it is present in other areas.
4
Control
Considerable work in other areas has been done on the management of this pest, but these results may or may not be applicable to CA; reported to be a serious pest of grapes.
4
Tools in Place
Notes
Score
Entry
A-rated pest from CDFA.
5
Control
A-rated pest from CDFA.
5
Outreach
Recently found in CA and now receiving much press.
