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Canada Thistle - Oofda #7287731
06/16/21 03:22 PM
06/16/21 03:22 PM
Joined: May 2010
Posts: 266
ND
DakotaBoy Offline OP
trapper
DakotaBoy  Offline OP
trapper

Joined: May 2010
Posts: 266
ND
How the Heck do you kill canada thistle? I've tried Tordon, Mecamine D, and old mixed 2-stroke gas on these sons-a-guns, and the only thing that touches it is the gas. You have to use a fair amount of it on the weeds though for it to really do it's job. I'd rather not have to continue to use gas on a lawn, but I can't for the life of me kill these stinking weeds They're taking over my backyard, and I'd like to let my young kids run around out there without getting pricked. Any fool-proof methods that won't kill the grass along with the thistle?


"Pretty cocky for a starving pilgrim!"
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287745
06/16/21 03:40 PM
06/16/21 03:40 PM
Joined: Dec 2006
Posts: 7,197
ND
M
MJM Offline
trapper
MJM  Offline
trapper
M

Joined: Dec 2006
Posts: 7,197
ND
The key principle to Canada thistle control is to stress the plant and force it to use stored root nutrients. Canada thistle can recover from almost any stress, including control attempts, because of root nutrient stores. Therefore, returning infested land to a productive state occurs only over time. Success requires a sound management plan implemented over several years. Mow then spray, once it starts coming back up.
Table 1. Herbicide to control Canada thistle in pasures, rangeland, natural and noncrop areas.
Herbicide Rate (Product/A) Application
timing Comments
Tordon 1 quart Anytime when weeds are rapidly growing Fall applications consistent results; may need re-treatment 1 to 2 years
Milestone 5 to 7 fl oz Spring at pre-flower-bud growth stage; or fall Use higher rate for older or dense stands; Milestone may be used to edge of ponds or streams; may need re-treatment 1 to 2 years
Transline 0.67 to 1.33 pints Spring after all shoots have emerged, rosette to early bud growth stages; or fall Apply 1 pint/A or more in fall; may need re-treatment 1 to 3 years
Perspective 5.5 oz Spring rosette to flower bud growth stage; or fall Use with a non-ionic surfactant at 0.25% v/v
Telar 1 oz Spring bolting to bud growth stages; or fall Fall applications most consistent results; essential to use non-ionic surfactant at 0.25% v/v; may need retreatment 1 to 2 years
Banvel,Vanquish, or Clarity
(dicamba)

2 quarts Spring rosette growth stage; or fall Fall applications most consistent results; may need re-treatment 2 to 4 years


"Not Really, Not Really"
Mark J Monti
"MJM you're a jerk."
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287746
06/16/21 03:41 PM
06/16/21 03:41 PM
Joined: Dec 2010
Posts: 26,884
Central, SD
Law Dog Offline
trapper
Law Dog  Offline
trapper

Joined: Dec 2010
Posts: 26,884
Central, SD
Grazon Next kills it you just need to give it a bath, I drive real slow when spraying around it.


Was born in a Big City Will die in the Country OK with that!

Jerry Herbst
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287749
06/16/21 03:44 PM
06/16/21 03:44 PM
Joined: Nov 2020
Posts: 30
Oklahoma
B
BobMac Offline
trapper
BobMac  Offline
trapper
B

Joined: Nov 2020
Posts: 30
Oklahoma
Grazon P+D

Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287752
06/16/21 03:48 PM
06/16/21 03:48 PM
Joined: Dec 2010
Posts: 26,884
Central, SD
Law Dog Offline
trapper
Law Dog  Offline
trapper

Joined: Dec 2010
Posts: 26,884
Central, SD
They brag this up this little bottle the stuff covers several acres.

[Linked Image]


Was born in a Big City Will die in the Country OK with that!

Jerry Herbst
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287755
06/16/21 03:57 PM
06/16/21 03:57 PM
Joined: Mar 2018
Posts: 297
SW MISSOURI
R
Rockfarmer Offline
trapper
Rockfarmer  Offline
trapper
R

Joined: Mar 2018
Posts: 297
SW MISSOURI
Crossbow kills it and a lot of other weeds down here.


www.nationwidecartparts.com
3rd Infantry Division
1st Infantry Division
U.S. ARMY
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287756
06/16/21 03:57 PM
06/16/21 03:57 PM
Joined: Feb 2009
Posts: 11,809
Montana
USMC47 🦫 Online shocked
trapper
USMC47 🦫  Online Shocked
trapper

Joined: Feb 2009
Posts: 11,809
Montana
I use 2-4-D here.


The deadliest weapon in the world is a Marine and his rifle.

www.derricks-nm.com
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287760
06/16/21 04:01 PM
06/16/21 04:01 PM
Joined: Dec 2006
Posts: 6,966
Piney va. soon be 19
cotton Offline
trapper
cotton  Offline
trapper

Joined: Dec 2006
Posts: 6,966
Piney va. soon be 19
A good sharp hoe


John 3/16

ifin your gonna be dumb ya gotta be tough
Proud testosterone charged redneck
www.cotton45c.com
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287762
06/16/21 04:04 PM
06/16/21 04:04 PM
Joined: Jan 2017
Posts: 5,100
Marion Kansas
Y
Yes sir Offline
trapper
Yes sir  Offline
trapper
Y

Joined: Jan 2017
Posts: 5,100
Marion Kansas
Milestone and crop oil is what I'm spraying on our musk thistles as I speak.

Re: Canada Thistle - Oofda [Re: USMC47 🦫] #7287788
06/16/21 04:38 PM
06/16/21 04:38 PM
Joined: Nov 2013
Posts: 578
MN South of Gotha
J
Jags Offline
trapper
Jags  Offline
trapper
J

Joined: Nov 2013
Posts: 578
MN South of Gotha
Originally Posted by USMC47 🦫
I use 2-4-D here.

This is what I use. Spring and fall. Might take a couple years to get them under control if you got a bunch.

Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287793
06/16/21 04:44 PM
06/16/21 04:44 PM
Joined: Dec 2006
Posts: 425
N.E. S.D.
S
Stewie Offline
trapper
Stewie  Offline
trapper
S

Joined: Dec 2006
Posts: 425
N.E. S.D.
Another vote for milestone.. Has worked very well for me. It does pretty good on wormwood too.

Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287794
06/16/21 04:44 PM
06/16/21 04:44 PM
Joined: Jul 2009
Posts: 1,335
Oregon
H
H2ORat Offline
trapper
H2ORat  Offline
trapper
H

Joined: Jul 2009
Posts: 1,335
Oregon
crossbow or round up -- round up is batter on canadians -- haven't tried the vastland ( tri chlor) on them yet.

Re: Canada Thistle - Oofda [Re: Jags] #7287809
06/16/21 05:13 PM
06/16/21 05:13 PM
Joined: Jun 2015
Posts: 3,467
rogers city mi.
J
jeff karsten Offline
trapper
jeff karsten  Offline
trapper
J

Joined: Jun 2015
Posts: 3,467
rogers city mi.
Originally Posted by Jags
Originally Posted by USMC47 🦫
I use 2-4-D here.

This is what I use. Spring and fall. Might take a couple years to get them under control if you got a bunch.

doubt there's anything better i use the 65% active ingredient spray when they're small and check your neighbors yard to see if thats where they came from


olden tyred
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287842
06/16/21 05:54 PM
06/16/21 05:54 PM
Joined: Dec 2006
Posts: 379
South Dakota
S
Staner Offline
trapper
Staner  Offline
trapper
S

Joined: Dec 2006
Posts: 379
South Dakota
Milestone and a surfactant. It's all I use and all I need.


Badges?? We don't need no stinkin' badges!!!

Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287847
06/16/21 06:06 PM
06/16/21 06:06 PM
Joined: Sep 2012
Posts: 552
Perry, NY
D
Dana I Offline
trapper
Dana I  Offline
trapper
D

Joined: Sep 2012
Posts: 552
Perry, NY

[Linked Image]


We have had good luck with this. Knocks it down much more reliably then 2-4d.

Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287864
06/16/21 06:39 PM
06/16/21 06:39 PM
Joined: May 2010
Posts: 2,146
The great cage state Colorado
M
Monster Toms Offline
trapper
Monster Toms  Offline
trapper
M

Joined: May 2010
Posts: 2,146
The great cage state Colorado
Thistle needs a surfactant. 2-4d, crossbow, redeem, curtail with glyphosate, all will knock it down. Best if you can catch it when it's 8" tall or less.






Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287865
06/16/21 06:39 PM
06/16/21 06:39 PM
Joined: Feb 2018
Posts: 150
CO
R
Ringneck1 Offline
trapper
Ringneck1  Offline
trapper
R

Joined: Feb 2018
Posts: 150
CO
Another vote for milestone

Re: Canada Thistle - Oofda [Re: cotton] #7287935
06/16/21 08:25 PM
06/16/21 08:25 PM
Joined: Dec 2013
Posts: 9,060
Greene County,Virginia
R
run Offline
trapper
run  Offline
trapper
R

Joined: Dec 2013
Posts: 9,060
Greene County,Virginia
Originally Posted by cotton
A good sharp hoe

X2.


wanna be goat farmer.
Re: Canada Thistle - Oofda [Re: run] #7287968
06/16/21 09:12 PM
06/16/21 09:12 PM
Joined: Jan 2018
Posts: 136
West Virginia
C
Choo Offline
trapper
Choo  Offline
trapper
C

Joined: Jan 2018
Posts: 136
West Virginia
Originally Posted by run
Originally Posted by cotton
A good sharp hoe

X2.


Canada Thistle spreads on rhizomes so wouldn't recommend the hoe method. You just turn one plant into 5. Grazon next does a pretty decent job. Spray prebloom or fall 4-6 weeks prior to frost

Last edited by Choo; 06/16/21 09:15 PM.
Re: Canada Thistle - Oofda [Re: DakotaBoy] #7287980
06/16/21 09:20 PM
06/16/21 09:20 PM
Joined: Nov 2014
Posts: 895
east central WI
D
Dirty D Offline
trapper
Dirty D  Offline
trapper
D

Joined: Nov 2014
Posts: 895
east central WI
I let it get to about 5 ft tall, then I snip it off just above the ground and coat the stump with 20-30% glyphosate.

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