Descriptions

PRE = Preemergence
POST = Postemergence

0 = Not Labeled or No Control
1 = Excellent Control
2 = Fair Control
3 = Poor Control

List of Herbicides Used on Thistle, Canada

Efficacy
Rating of
PRE
Control
Efficacy Rating of POST
Control
2,4-D
MCPB
acifluorfen
ametryn
aminopyralid
bentazon
bromoxynil
carfentrazone
chlorimuron
chlorsulfuron
clopyralid
cloransulam
dicamba
dichlobenil
diflufenzopyr
glufosinate
glyphosate
hexazinone
imazamox
lactofen
metsulfuron
primisulfuron
prosulfuron
rimsulfuron
sulfometuron
terbacil
triasulfuron
tribenuron
triclopyr
0
0
0
2
0
0
0
0
0
3
0
0
0
1
0
0
0
2
0
2
0
0
0
0
1
3
0
0
0
2
1
1
2
1
2
2
2
1
3
1
2
1
0
1
1
2
2
2
2
2
2
2
2
1
3
2
2
2

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