Paper · 2015 · Weed Technology

Evaluation of Herbicide Options for Alligatorweed (Alternanthera philoxeroides) Control in Rice

Samuel D. Willingham; Muthukumar V. Bagavathiannan; Katherine S. Carson; et al.

11
claims
36
verbatim quotes
7
citations
2
research areas
—
Not open access

Abstract

Alligatorweed is a perennial, invasive weed in southern United States rice production, but knowledge on effective management of this weed is limited, especially in conventional (non-imidazolinone-resistant) rice fields. Field studies were conducted in multiple environments in southeastern Texas to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice when applied at early POST (EPOST), late POST (LPOST), or both. Among the herbicide options evaluated, penoxsulam alone (up to 83%), penoxsulam plus triclopyr (up to 87%), or bispyribac-sodium plus triclopyr (92%) provided superior alligatorweed control. Plots treated with penoxsulam plus triclopyr EPOST produced the highest yields (9,550 kg ha −1 ), which were comparable to plots receiving penoxsulam plus triclopyr LPOST (9,320 kg ha −1 ), penoxsulam alone EPOST (9,280 kg ha −1 ), and penoxsulam plus halosulfuron LPOST (9,180 kg ha −1 ). Considering both weed control and rice grain yields, penoxsulam plus triclopyr applied EPOST was found to be the best option among the treatments tested. The treatments bensulfuron alone, bensulfuron plus propanil, penoxsulam plus propanil, triclopyr plus propanil, and bispyribac-sodium plus propanil provided poor (≤ 65%) alligatorweed control. Results also suggest the likelihood for antagonistic interactions when tank-mix combinations tested in this study included propanil.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam alone gave superior alligatorweed control in rice (up to 83%).

Treatment
penoxsulam alonee2
Interactor
alligatorweede1weed
Outcome
alligatorweed controle2
Direction
superiore2
Value
up to 83%e2
Comparator
the herbicide options evaluatede2
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e2

“Among the herbicide options evaluated, penoxsulam alone (up to 83%), penoxsulam plus triclopyr (up to 87%), or bispyribac-sodium plus triclopyr (92%) provided superior alligatorweed control”

✓ located verbatim in the source · abstract, characters 564–753 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam plus triclopyr gave superior alligatorweed control in rice (up to 87%).

Treatment
penoxsulam plus triclopyre2
Interactor
alligatorweede1weed
Outcome
alligatorweed controle2
Direction
superiore2
Value
up to 87%e2
Comparator
the herbicide options evaluatede2
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e2

“Among the herbicide options evaluated, penoxsulam alone (up to 83%), penoxsulam plus triclopyr (up to 87%), or bispyribac-sodium plus triclopyr (92%) provided superior alligatorweed control”

✓ located verbatim in the source · abstract, characters 564–753 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bispyribac-sodium plus triclopyr gave superior alligatorweed control in rice (92%).

Treatment
bispyribac-sodium plus triclopyre2
Interactor
alligatorweede1weed
Outcome
alligatorweed controle2
Direction
superiore2
Value
92%e2
Comparator
the herbicide options evaluatede2
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e2

“Among the herbicide options evaluated, penoxsulam alone (up to 83%), penoxsulam plus triclopyr (up to 87%), or bispyribac-sodium plus triclopyr (92%) provided superior alligatorweed control”

✓ located verbatim in the source · abstract, characters 564–753 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam plus triclopyr applied EPOST produced the highest rice yield (9,550 kg ha −1).

Treatment
penoxsulam plus triclopyr EPOSTe3
Outcome
yieldse3
Direction
higheste3
Value
9,550 kg ha −1e3
Setting
southeastern Texase0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e3

“Plots treated with penoxsulam plus triclopyr EPOST produced the highest yields (9,550 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 755–851 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam plus triclopyr LPOST rice yield was comparable to EPOST (9,320 kg ha −1).

Treatment
penoxsulam plus triclopyr LPOSTe4
Outcome
yieldse3
Direction
comparablee4
Value
9,320 kg ha −1e4
Comparator
penoxsulam plus triclopyr EPOSTe3
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e3

“Plots treated with penoxsulam plus triclopyr EPOST produced the highest yields (9,550 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 755–851 · show in text ↑
e4

“which were comparable to plots receiving penoxsulam plus triclopyr LPOST (9,320 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 853–943 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam alone applied EPOST rice yield was comparable to the best EPOST treatment (9,280 kg ha −1).

Treatment
penoxsulam alone EPOSTe5
Outcome
yieldse3
Direction
comparablee4
Value
9,280 kg ha −1e5
Comparator
penoxsulam plus triclopyr EPOSTe3
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e3

“Plots treated with penoxsulam plus triclopyr EPOST produced the highest yields (9,550 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 755–851 · show in text ↑
e4

“which were comparable to plots receiving penoxsulam plus triclopyr LPOST (9,320 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 853–943 · show in text ↑
e5

“penoxsulam alone EPOST (9,280 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 945–985 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam plus halosulfuron LPOST rice yield was comparable to the best EPOST treatment (9,180 kg ha −1).

Treatment
penoxsulam plus halosulfuron LPOSTe6
Outcome
yieldse3
Direction
comparablee4
Value
9,180 kg ha −1e6
Comparator
penoxsulam plus triclopyr EPOSTe3
Setting
southeastern Texase0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e3

“Plots treated with penoxsulam plus triclopyr EPOST produced the highest yields (9,550 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 755–851 · show in text ↑
e4

“which were comparable to plots receiving penoxsulam plus triclopyr LPOST (9,320 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 853–943 · show in text ↑
e6

“penoxsulam plus halosulfuron LPOST (9,180 kg ha −1 )”

✓ located verbatim in the source · abstract, characters 991–1043 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Penoxsulam plus triclopyr applied EPOST was the best option among the treatments tested in rice.

Treatment
penoxsulam plus triclopyr applied EPOSTe7
Outcome
best optione7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e7

“penoxsulam plus triclopyr applied EPOST was found to be the best option among the treatments tested”

✓ located verbatim in the source · abstract, characters 1098–1197 · show in text ↑

schema checkedfield values found in the cited quotesPermalinkReport an issue

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bensulfuron alone, bensulfuron plus propanil and penoxsulam plus propanil gave poor alligatorweed control (≤ 65%).

Treatment
bensulfuron alone, bensulfuron plus propanil, penoxsulam plus propanile7
Interactor
alligatorweede1weed
Outcome
alligatorweed controle7
Direction
poore7
Value
≤ 65%e7
Setting
southeastern Texase0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e7

“The treatments bensulfuron alone, bensulfuron plus propanil, penoxsulam plus propanil, triclopyr plus propanil, and bispyribac-sodium plus propanil provided poor (≤ 65%) alligatorweed control”

✓ located verbatim in the source · abstract, characters 1199–1390 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Triclopyr plus propanil and bispyribac-sodium plus propanil gave poor alligatorweed control (≤ 65%).

Treatment
triclopyr plus propanil, and bispyribac-sodium plus propanile7
Interactor
alligatorweede1weed
Outcome
alligatorweed controle7
Direction
poore7
Value
≤ 65%e7
Setting
southeastern Texase0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Field studies were conducted in multiple environments in southeastern Texas”

✓ located verbatim in the source · abstract, characters 220–295 · show in text ↑
e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e7

“The treatments bensulfuron alone, bensulfuron plus propanil, penoxsulam plus propanil, triclopyr plus propanil, and bispyribac-sodium plus propanil provided poor (≤ 65%) alligatorweed control”

✓ located verbatim in the source · abstract, characters 1199–1390 · show in text ↑
Associationhypothesisoriginal resultnegativemeasured

Claim · model-written summary

Tank-mix combinations including propanil likely cause antagonistic interactions in rice weed control.

Treatment
propanile6
Outcome
antagonistic interactionse6

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“to evaluate different herbicide options involving penoxsulam, propanil, triclopyr, halosulfuron, bispyribac-sodium, bensulfuron, and quinclorac for alligatorweed control in conventional drill-seeded rice”

✓ located verbatim in the source · abstract, characters 296–499 · show in text ↑
e6

“Results also suggest the likelihood for antagonistic interactions when tank-mix combinations tested in this study included propanil”

✓ located verbatim in the source · abstract, characters 1392–1523 · show in text ↑

trichlopyr · yield · Oryza sativa (rice)Results differ

7 papers: 2 positive, 5 negative or no effect

1 paper in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. negative

3 papers more in this group

See all 7 papers →

Penoxsulam · yield · Oryza sativa (rice)Results differ

87 papers: 75 positive, 12 negative or no effect

74 papers in the same direction as this paper · 7 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

83 papers more in this group

See all 87 papers →

trichlopyr · control · Oryza sativa (rice)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive
See all 4 papers →

bensulfuron · control · Oryza sativa (rice)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

1 paper in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

bispyribac-sodium · control · Oryza sativa (rice)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

6 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive

4 papers more in this group

See all 8 papers →

Penoxsulam · control · Oryza sativa (rice)Positive and negative results

11 papers: 10 positive, 1 negative or no effect

9 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

propanil · control · Oryza sativa (rice)Positive and negative results

14 papers: 10 positive, 4 negative or no effect

3 papers in the same direction as this paper · 10 in the opposite direction

  1. negative
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

Halosulfuron-methyl · yield · Oryza sativa (rice)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.