Noxious Weeds Profile - Bull Thistle
Table of Contents
English - bull thistle
French - chardon vulgaire
Latin Name - Cirsium vulgare (Savi) Ten.
- Ontario Weeds Act - noxious
- Other provinces - noxious in Manitoba
- Canadian Federal Seeds Act - no
- U.S. Federal Noxious Weed - no
- U.S. Noxious State Reg - 8 states (including Michigan, Minnesota, Pennsylvania)
- Pub 505 - no
- NE Weeds - no
- Canadian Poison Plant - not listed
- Cornell Poison Plant - not listed
- Common in pastures, roadsides and waste areas.
- Seeds (wind blown)
Susceptible to dicamba and glyphosate. 2,4-D gives control of top growth only. Not listed on Banvel label. Best time to mow is at full flowering but before seeds ripen in mid summer. Mowing will not kill first year rosettes. Cultivation needs to cut them off below the rosette or crown of the plant.
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