Paper · 2025 · Kansas Agricultural Experiment Station Research Reports

Weed Control and Corn Yield Following Preemergence and Sequential Applications of Mesotrione-based Premixtures

Patrick W. Geier; Sarah H. Lancaster

14
claims
27
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

All herbicides evaluated provided good control of Palmer amaranth, kochia, and Russian thistle at Garden City and Palmer amaranth and common sunflower at Manhattan early in the season. Control of Russian thistle at Garden City, sunflower at Manhattan, and Palmer amaranth at both locations. remained high with all treatments throughout the season. Trivolt at 20 oz/a controlled entireleaf morningglory 73% at Manhattan early in the season. Morningglory control was greater than 92% with all treatments except Storen at 2.4 qt/a plus atrazine or Acuron preemergence (PRE) later in the season. Minor (<10%) corn injury was observed at Manhattan, but grain yields did not differ by the end of the season. At Garden City, grain yields were highest when Acuron plus atrazine or Storen plus atrazine were applied PRE, and when split applications of Lumax EZ or Storen were applied PRE followed by postemergence (POST). Producers need to be aware that below-labeled rates of herbicides can increase the risk of herbicide resistance development, and control of late-emerging weeds is important.

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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 14

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All herbicides gave good early control of Palmer amaranth, kochia and Russian thistle at Garden City.

Treatment
All herbicides evaluatede0
Interactor
Palmer amaranthe0weed
Second interactor
kochiaBassiae0weed
Outcome
control of Palmer amaranth, kochia, and Russian thistlee0
Direction
goode0
Setting
Garden Citye0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Bassia
Bassia · Second interactor · picture of the genus (one of its species)Felagund · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All herbicides evaluated provided good control of Palmer amaranth, kochia, and Russian thistle at Garden City”

✓ located verbatim in the source · abstract, characters 0–109 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All herbicides gave good early control of Palmer amaranth and common sunflower at Manhattan.

Interactor
Palmer amaranthe0weed
Second interactor
common sunflowerHelianthus annuuse0weed
Outcome
Palmer amaranth and common sunflowere0
Setting
Manhattane0

Not reportedTreatmentComparatorDirection

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Helianthus annuus
Helianthus annuus · Second interactorJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Palmer amaranth and common sunflower at Manhattan early in the season”

✓ located verbatim in the source · abstract, characters 114–183 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Control of Russian thistle at Garden City remained high throughout the season with all treatments.

Interactor
Russian thistleSalsola traguse0weed
Outcome
Control of Russian thistlee0
Direction
remained highe0
Setting
Garden Citye0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Salsola tragus
Salsola tragus · InteractorAnRo0002 · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Control of Russian thistle at Garden City, sunflower at Manhattan, and Palmer amaranth at both locations. remained high with all treatments throughout the season.”

✓ located verbatim in the source · abstract, characters 185–347 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Sunflower control at Manhattan remained high throughout the season.

Interactor
sunflowerHelianthus annuuse0weed
Outcome
sunflowere0
Direction
remained highe0
Setting
Manhattane0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Helianthus annuus
Helianthus annuus · InteractorJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“sunflower at Manhattan, and Palmer amaranth at both locations. remained high with all treatments throughout the season.”

✓ located verbatim in the source · abstract, characters 228–347 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Palmer amaranth control at both locations remained high throughout the season.

Interactor
Palmer amaranthe0weed
Outcome
Palmer amaranthe0
Direction
remained highe0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Palmer amaranth at both locations. remained high with all treatments throughout the season.”

✓ located verbatim in the source · abstract, characters 256–347 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Trivolt at 20 oz/a controlled entireleaf morningglory 73% early at Manhattan.

Treatment
Trivolt at 20 oz/ae0
Interactor
entireleaf morningglorye0weed
Outcome
entireleaf morningglorye0
Direction
controllede0
Value
73%e0
Setting
Manhattane0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Trivolt at 20 oz/a controlled entireleaf morningglory 73% at Manhattan early in the season.”

✓ located verbatim in the source · abstract, characters 348–439 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Late season morningglory control exceeded 92% with treatments other than the two named exceptions.

Treatment
all treatmentse0
Interactor
Morningglorye0weed
Outcome
Morningglory controle0
Direction
greater thane0
Value
92%e0
Comparator
Storen at 2.4 qt/a plus atrazine or Acuron preemergence (PRE)e0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Morningglory control was greater than 92% with all treatments except Storen at 2.4 qt/a plus atrazine or Acuron preemergence (PRE) later in the season.”

✓ located verbatim in the source · abstract, characters 440–591 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Minor corn injury occurred at Manhattan.

Outcome
corn injurye0
Value
<10%e0
Setting
Manhattane0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Minor (<10%) corn injury was observed at Manhattan”

✓ located verbatim in the source · abstract, characters 592–642 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Corn grain yields did not differ by season end at Manhattan.

Outcome
grain yieldse0
Direction
did not differe0
Setting
Manhattane0

Not reportedTreatmentComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Minor (<10%) corn injury was observed at Manhattan, but grain yields did not differ by the end of the season.”

✓ located verbatim in the source · abstract, characters 592–701 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At Garden City, yields were highest with Acuron plus atrazine applied preemergence.

Treatment
Acuron plus atrazinee0
Outcome
grain yieldse0
Direction
higheste0
Setting
Garden Citye0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“At Garden City, grain yields were highest when Acuron plus atrazine or Storen plus atrazine were applied PRE”

✓ located verbatim in the source · abstract, characters 702–810 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At Garden City, yields were highest with Storen plus atrazine applied preemergence.

Treatment
Storen plus atrazinee0
Outcome
grain yieldse0
Direction
higheste0
Setting
Garden Citye0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“At Garden City, grain yields were highest when Acuron plus atrazine or Storen plus atrazine were applied PRE”

✓ located verbatim in the source · abstract, characters 702–810 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At Garden City, yields were highest with split Lumax EZ applications.

Treatment
split applications of Lumax EZe0

Not reportedComparatorSettingOutcomeDirection

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“when split applications of Lumax EZ or Storen were applied PRE followed by postemergence (POST)”

✓ located verbatim in the source · abstract, characters 816–911 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At Garden City, yields were highest with split Storen applications.

Treatment
split applications of Lumax EZ or Storene0
Outcome
grain yieldse0
Direction
higheste0
Setting
Garden Citye0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“At Garden City, grain yields were highest when Acuron plus atrazine or Storen plus atrazine were applied PRE, and when split applications of Lumax EZ or Storen were applied PRE followed by postemergence (POST).”

✓ located verbatim in the source · abstract, characters 702–912 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Producers should account for the resistance risk of below-labeled herbicide rates and control late-emerging weeds.

Outcome
control of late-emerging weedse0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Producers need to be aware that below-labeled rates of herbicides can increase the risk of herbicide resistance development, and control of late-emerging weeds is important.”

✓ located verbatim in the source · abstract, characters 913–1086 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 17–21 · show in text ↑

atrazine · yield · Zea mays (maize)Results differ

240 papers: 205 positive, 35 negative or no effect

204 papers in the same direction as this paper · 29 in the opposite direction · 6 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

236 papers more in this group

See all 240 papers →

herbicide · control · Zea mays (maize)Positive and negative results

119 papers: 94 positive, 25 negative or no effect

93 papers in the same direction as this paper · 20 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

115 papers more in this group

See all 119 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.