Sorghum halepense Scorecard

Species:  Sorghum halepense

Common Name:  johnsongrass

Scorecard created on
Last Updated on

Results

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

Ability to Respond Total:9 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateInvades disturbed riparian habitats.1
Spread AmountInvades cultivated fields, highly competitive with crop plants (especially cotton), infestations can significantly reduce crop yields.4
DamageNotesScore
Ecological0
AgriculturalStill listed as a forage crop, despite weedy reputation.1
Infrastructure0
Cultural0
Health0
BenefitNotesScore
Ecological0
Agricultural0
Infrastructure0
Cultural0
Health0
Total6

Ability to Respond

Ease of ResponseNotesScore
DetectionEasily detected in late summer when other grasses have gone brown and it is still green.4
ControlPlants cannot tolerate repeated, close mowing. Some biotypes are herbicide resistant.4
Tools in PlaceNotesScore
Entry0
Control0
OutreachOn CDFA list.1
Total9

References