Ability to Respond Total:17 / 25Ability to Respond = ( Ease of Response + Tools in Place )
Confidence:Medium
Confidence Notes:
Impact
Spread
Notes
Score
Spread Rate
Can spread and reproduce by seed or by root. Moved around naturally, but also by human spread (escaped ornamental)
4
Spread Amount
Currently limited in spread throughout California, but potential to occupy multiple habitats and ecotypes. Many larger populations in other western states and regulated in British Columbia. Recently proposed for A list Noxious weed Rating.
3
Damage
Notes
Score
Ecological
Can overtake desirable plants forming monocultures in areas it invades.
3
Agricultural
Livestock will not graze myrtle spurge due to the milky latex sap.
2
Infrastructure
1
Cultural
0
Health
Milky sap can cause severe toxic dermatitis or blindness if it gets into the eyes. When dealing with the plant protective clothing gloves and eyewear are needed.
3
Benefit
Notes
Score
Ecological
1
Agricultural
0
Infrastructure
0
Cultural
0
Health
0
Total
15
Ability to Respond
Ease of Response
Notes
Score
Detection
Showy flowers and distinctive foliage make this plant easy to detect.
4
Control
Can be controlled with herbicides or hand pulling if the entire shallow root is excavated.
3
Tools in Place
Notes
Score
Entry
A rated pest
3
Control
A rated pest (and rated in other states)
5
Outreach
Currently, as populations are limited outreach has been limited. (But listed on CALIPC and CDFA)
