Orobanche cooperi Scorecard

Common Name: Cooper's broomrape

Scorecard created on February 22, 2010 - 4:34pm

Last Updated on December 17, 2022 - 7:39pm

Results

Impact Total:6 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:8 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:Medium

Confidence Notes:

Spread	Notes	Score
Spread Rate	Seeds do not have long distance dispersal mechanism, so they are primarily transported as contaminants from agricultural fields.	3
Spread Amount	Outside of its native range in the southwestern US, it is primarily limited to agricultural lands.	2

Damage	Notes	Score
Ecological		0
Agricultural	Cooper's broomrape is a widespread native of the Southwestern U.S., including California, and is not considered a weed in natural habitats.	5
Infrastructure		0
Cultural		0
Health		0

Benefit	Notes	Score
Ecological	Native to southwestern deserts where they play an important role in that natural ecosystem.	4
Agricultural		0
Infrastructure		0
Cultural		0
Health		0

Total		6

Ease of Response	Notes	Score
Detection	Very difficult to detect as they are parasitic and small seeded. Problem usually is already present once they are detected.	1
Control	Very difficult to control weed selectively. Must eliminate crop.	1

Tools in Place	Notes	Score
Entry	CDFA Noxious Weed List A mandates that the plant cannot be moved around intentionally, but as a native plant it cannot be controlled.	0
Control	Once established in a crop, control would be mandated as this is an A listed weed.	5
Outreach	Very weak outreach program in place.	1

Total		8

No references yet.