Ability to Respond Total:17 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:High
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Adults can fly several miles even without winds; further with wind; occurs in nearly every state in the US and has been moving west for the last 30 years, now in Idaho, Oregon, etc.; another species and subspecies not in CA could be equally problematic.
5
Spread Amount
Egg diapauses in winter to avoid cold/freezing Midwest conditions; the lower degree of cold in CA may present challenges to the pest but I believe it will be able to cope; otherwise unrestricted by environmental conditions as long as host is available.
4
Damage
Notes
Score
Ecological
Soil insecticides would be a primary means for management and these could present water quality issues.
2
Agricultural
Attacks corn and cucurbits with corn (field, sweet, and pop) being the key host.
3
Infrastructure
0
Cultural
Pest of garden vegetables.
1
Health
0
Benefit
Notes
Score
Ecological
0
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
15
Ability to Respond
Ease of Response
Notes
Score
Detection
The beetles are very obvious - attracted to yellow baited sticky traps; the eggs and larvae are soil-borne making them difficult to easily detect.
4
Control
There are numerous control methods that have been developed as a consequence of the heavy investment in research on this pest but these will add costs for the corn growers - insecticides, crop rotation, GMO corn, etc.
3
Tools in Place
Notes
Score
Entry
A-rated pest from CDFA.
5
Control
A-rated pest from CDFA.
5
Outreach
No efforts in this area in CA, but it is a heavily researched and published insect elsewhere.
