Abstract
Field experiments were conducted in 2001, 2002, and 2003 to evaluate PRE applications of mesotrione at 150, 230, and 310 g ai/ha alone, and in mixtures with S -metolachlor at 1,070 g ai/ha and atrazine at 560 and 1,120 g ai/ha in corn. Corn injury was 11 to 18% with all treatments in 2002 when 3.2 cm of rainfall occurred within 10 d after PRE applications, but no injury was observed in 2001 and 2003 when rainfall was 0 and 1.1 cm within 10 d after PRE applications, respectively. Rainfall following PRE herbicide applications also influenced weed control, where weed control was generally poor with all herbicide treatments in 2001. Mesotrione at 150 g/ha controlled common lambsquarters and smooth pigweed at least 95% in 2002 and 2003, but control was 70% or less in 2001. PRE mesotrione at rates of 230 or 310 g/ha controlled common ragweed at least 83% in 2002 and 2003, but control exceeded 88% with mixtures of mesotrione at rates greater than 150 g/ha plus S -metolachlor plus atrazine at 560 g/ha. Morningglory species (ivyleaf morningglory, pitted morningglory, and tall morningglory) were not consistently controlled by mesotrione alone. In 2002 and 2003, mixtures of all mesotrione rates plus S -metolachlor plus atrazine at 1,120 g/ha controlled morningglory species at least 90%. Corn treated with mesotrione at any rate plus S -metolachlor plus atrazine at 1,120 g/ha consistently produced high yields. It is concluded that control with this three-way mixture would be most consistent with a minimum rate of mesotrione at 230 g/ha and atrazine at 1,120 g/ha.
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Claims 11
Claim · model-written summary
All herbicide treatments caused 11 to 18% corn injury in rainy 2002, with none observed in 2001 or 2003.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- all treatmentse0
- Outcome
- Corn injurye0
- Value
- 11 to 18%e0
- Qualifier
- 2002 when 3.2 cm of rainfall occurred within 10 d after PRE applicationse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn injury was 11 to 18% with all treatments in 2002 when 3.2 cm of rainfall occurred within 10 d after PRE applications, but no injury was observed in 2001 and 2003 when rainfall was 0 and 1.1 cm within 10 d after PRE applications, respectively.”
Claim · model-written summary
Weed control was generally poor with all herbicides in 2001.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- all herbicide treatmentse0
- Outcome
- weed controle0
- Direction
- poore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rainfall following PRE herbicide applications also influenced weed control, where weed control was generally poor with all herbicide treatments in 2001.”
t0“Corn”
Claim · model-written summary
Mesotrione at 150 g/ha controlled common lambsquarters and smooth pigweed at least 95% in 2002 and 2003.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Mesotrione at 150 g/hae0
- Interactor
- common lambsquarters
Chenopodium albume0weed - Outcome
- controllede0
- Direction
- controllede0
- Value
- 95%e0
- Qualifier
- in 2002 and 2003e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mesotrione at 150 g/ha controlled common lambsquarters and smooth pigweed at least 95% in 2002 and 2003, but control was 70% or less in 2001.”
t0“Corn”
Claim · model-written summary
Mesotrione at 150 g/ha controlled smooth pigweed at least 95% in 2002 and 2003.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Mesotrione at 150 g/hae0
- Interactor
- smooth pigweed
Amaranthus hybriduse0weed - Outcome
- controllede0
- Direction
- controllede0
- Value
- 95%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mesotrione at 150 g/ha controlled common lambsquarters and smooth pigweed at least 95% in 2002 and 2003, but control was 70% or less in 2001.”
t0“Corn”
Claim · model-written summary
Control by mesotrione at 150 g/ha was 70% or less in 2001.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Mesotrione at 150 g/hae0
- Interactor
- common lambsquartersChenopodium albume0weed
- Outcome
- controle0
- Value
- 70% or lesse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mesotrione at 150 g/ha controlled common lambsquarters and smooth pigweed at least 95% in 2002 and 2003, but control was 70% or less in 2001.”
t0“Corn”
Claim · model-written summary
Mesotrione at 230 or 310 g/ha controlled common ragweed at least 83% in 2002 and 2003.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- PRE mesotrione at rates of 230 or 310 g/hae0
- Interactor
- common ragweed
Ambrosia artemisiifoliae0weed - Outcome
- controllede0
- Direction
- controllede0
- Value
- 83%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PRE mesotrione at rates of 230 or 310 g/ha controlled common ragweed at least 83% in 2002 and 2003, but control exceeded 88% with mixtures of mesotrione at rates greater than 150 g/ha plus S -metolachlor plus atrazine at 560 g/ha.”
t0“Corn”
Claim · model-written summary
The three-way mixture controlled common ragweed above 88%.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- mesotrione at rates greater than 150 g/ha plus S -metolachlor plus atrazine at 560 g/hae0
- Interactor
- common ragweedAmbrosia artemisiifoliae1weed
- Outcome
- controle0
- Direction
- exceedede0
- Value
- 88%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control exceeded 88% with mixtures of mesotrione at rates greater than 150 g/ha plus S -metolachlor plus atrazine at 560 g/ha.”
e1“common ragweed”
t0“Corn”
Claim · model-written summary
Mesotrione alone did not consistently control morningglory species.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- mesotrione alonee0
- Interactor
- ivyleaf morningglory
Ipomoea hederaceae0weed - Outcome
- Morningglory speciese0
- Direction
- not consistently controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morningglory species (ivyleaf morningglory, pitted morningglory, and tall morningglory) were not consistently controlled by mesotrione alone.”
t0“Corn”
Claim · model-written summary
The three-way mixture controlled morningglory species at least 90% in 2002 and 2003.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- mixtures of all mesotrione rates plus S -metolachlor plus atrazine at 1,120 g/hae0
- Interactor
- morningglory speciese0weed
- Outcome
- controlled morningglory speciese0
- Direction
- controllede0
- Value
- 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2002 and 2003, mixtures of all mesotrione rates plus S -metolachlor plus atrazine at 1,120 g/ha controlled morningglory species at least 90%.”
t0“Corn”
Claim · model-written summary
Corn given any mesotrione rate plus metolachlor and atrazine at 1,120 g/ha consistently had high yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- mesotrione at any rate plus S -metolachlor plus atrazine at 1,120 g/hae0
- Outcome
- yieldse0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn treated with mesotrione at any rate plus S -metolachlor plus atrazine at 1,120 g/ha consistently produced high yields.”
Claim · model-written summary
The authors recommend at least 230 g/ha mesotrione and 1,120 g/ha atrazine in the three-way mixture for consistent control.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- mesotrione at 230 g/ha and atrazine at 1,120 g/hae0
- Outcome
- control with this three-way mixture would be most consistente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is concluded that control with this three-way mixture would be most consistent with a minimum rate of mesotrione at 230 g/ha and atrazine at 1,120 g/ha.”
t0“Corn”
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See all 27 papers →8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.