Cirsium arvense 1,933 claims

species · family Asteraceae · green plant · NCBI Taxonomy ↗

Common name: Canada thistle — Also written in claims: Canada thistle · Cirsium setosum · C. arvense var. integrifolium · C arvense · Canada Thistles · Cirsium setosum Bess — NCBI synonyms: Breea arvensis · Cirsium arvense (L.) Scop., 1772 · Serratula arvensis

Listed here with its subspecies, varieties and cultivar groups: Cirsium arvense var. setosum (26 claims), Cirsium arvense var. integrifolium (5 claims), Cirsium arvense var. vestitum (1 claim)

71 spellings

Questions studied on this organism43 questions1 with results that differ76 papers

Cirsium arvenseAnRo0002 · CC0 · Wikimedia Commons ↗

1,933 claims

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Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: EWCe1
Outcome: controle1
Value: 39%e1
Setting: Corvallise1

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e1
“In Corvallis, EWC provided 39% and 53% control with one and two applications, respectively”
✓ located verbatim in the source · abstract, characters 699–789

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: EWCe1
Outcome: controle1
Value: 53%e1
Qualifier: two applicationse1
Setting: Corvallise1

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e1
“In Corvallis, EWC provided 39% and 53% control with one and two applications, respectively”
✓ located verbatim in the source · abstract, characters 699–789

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: EWCe1
Outcome: controle2
Direction: increasede2
Value: 38%e2
Qualifier: single applicatione2
Setting: Canbye2

Not reportedComparator

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e1
“In Corvallis, EWC provided 39% and 53% control with one and two applications, respectively”
✓ located verbatim in the source · abstract, characters 699–789

e2
“in Canby, control increased from 38% with a single application to 94% with two applications”
✓ located verbatim in the source · abstract, characters 799–890

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: EWCe1
Outcome: controle2
Direction: increasede2
Value: 94%e2
Qualifier: two applicationse2
Comparator: single applicatione2
Setting: Canbye2

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e1
“In Corvallis, EWC provided 39% and 53% control with one and two applications, respectively”
✓ located verbatim in the source · abstract, characters 699–789

e2
“in Canby, control increased from 38% with a single application to 94% with two applications”
✓ located verbatim in the source · abstract, characters 799–890

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: Clopyralide3
Outcome: controle3
Value: 96%e3
Qualifier: single applicatione3
Setting: Corvallise3

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e3
“Clopyralid provided 96% control with a single application and 95% with two applications in Corvallis, compared with 43% and 78% in Canby”
✓ located verbatim in the source · abstract, characters 892–1028

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: Clopyralide3
Outcome: controle3
Value: 95%e3
Qualifier: two applicationse3
Setting: Corvallise3

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e3
“Clopyralid provided 96% control with a single application and 95% with two applications in Corvallis, compared with 43% and 78% in Canby”
✓ located verbatim in the source · abstract, characters 892–1028

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clopyralid gave 43% control of Cirsium arvense in Canby.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: Clopyralide3
Outcome: controle3
Value: 43%e3
Setting: Canbye3

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e3
“Clopyralid provided 96% control with a single application and 95% with two applications in Corvallis, compared with 43% and 78% in Canby”
✓ located verbatim in the source · abstract, characters 892–1028

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clopyralid gave 78% control of Cirsium arvense in Canby.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: Clopyralide3
Outcome: controle3
Value: 78%e3
Setting: Canbye3

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e3
“Clopyralid provided 96% control with a single application and 95% with two applications in Corvallis, compared with 43% and 78% in Canby”
✓ located verbatim in the source · abstract, characters 892–1028

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: Two EWC applicationse4
Outcome: shoot biomasse4
Direction: reducede4
Value: 95%e4
Setting: Canbye4

Not reportedComparator

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e4
“Two EWC applications reduced shoot biomass by 95% in Canby”
✓ located verbatim in the source · abstract, characters 1030–1088

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

EWC followed by clopyralid gave 89% control of Cirsium arvense in Corvallis.

Taxon: Cirsium arvenseCirsium arvenset0
Treatment: EWC followed by clopyralide5
Outcome: controle5
Value: 89%e5
Setting: Corvallise5

Not reportedComparatorDirection

Verbatim

t0
“Cirsium arvense management with electrical weed control and clopyralid”
✓ located verbatim in the source · title, characters 0–70

e5
“Combined treatments were highly effective: EWC followed by clopyralid achieved 89% control in Corvallis and 87% in Canby, and the reverse sequence achieved 98% control”
✓ located verbatim in the source · abstract, characters 1090–1257

Title

Cirsium arvense management with electrical weed control and clopyralid

Luisa Carolina Baccin; Marcelo L. Moretti Pest Management Science 2026. doi:10.1002/ps.70736

Other claims from this paper (13)

Intervention effect Electrical weed control with one application gave 39% control of Cirsium arvense in Corvallis.
Intervention effect Electrical weed control with two applications gave 53% control of Cirsium arvense in Corvallis.
Intervention effect In Canby, control of Cirsium arvense increased to 38% with a single electrical weed control application.
Intervention effect In Canby, control of Cirsium arvense increased to 94% with two electrical weed control applications.
Intervention effect Clopyralid with a single application gave 96% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid with two applications gave 95% control of Cirsium arvense in Corvallis.
Intervention effect Clopyralid gave 43% control of Cirsium arvense in Canby.
Intervention effect Clopyralid gave 78% control of Cirsium arvense in Canby.
Intervention effect Two electrical weed control applications reduced Cirsium arvense shoot biomass by 95% in Canby.
Intervention effect EWC followed by clopyralid gave 87% control of Cirsium arvense in Canby.
Intervention effect The reverse sequence gave 98% control of Cirsium arvense.
Intervention effect Electrical weed control gave only transient control of Cirsium arvense.
Intervention effect Integration with clopyralid improved control of Cirsium arvense.