Abstract
Rattail fescue, a winter annual grass weed, has been increasing in Pacific Northwest (PNW) dryland cereal producing areas. Although rattail fescue is not a new weed species in the PNW, its incidence is expanding rapidly in circumstances where soil disturbances are minimized such as in direct seed systems. Options for effective rattail fescue control in winter wheat cropping systems have not been adequately investigated and need to be developed. Rattail fescue control with herbicide treatments was investigated in imidazolinone-resistant winter wheat using imazamox and other herbicides. Across multiple sites and two growing seasons, crop injury from herbicide treatments was minor to negligible with some exceptions. Treatments containing imazamox or mesosulfuron produced minor, transient winter wheat crop injury at some locations in some years. With the exception of flufenacet applied preemergence (PRE), control of rattail fescue in wheat was variable with single herbicide applications, but improved with sequential herbicide treatments. Rattail fescue biomass was greatly reduced by several treatments especially those containing flufenacet or from sequential herbicide application. Crop yield varied among sites due to growing season precipitation, and in some cases from rattail fescue control or herbicide related crop injury.Nomenclature: diuron, flufenacet, imazamox, mesosulfuron, pendimethalin, sulfosulfuron, rattail fescue, Vulpia myuros (L.) K.C. Gmel. VLPMY, winter wheat, Triticum aestivum L. ‘ClearFirst’®
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Claims 10
Claim · model-written summary
Herbicide treatments generally caused minor to negligible wheat injury.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- herbicide treatmentse0
- Outcome
- crop injurye0
- Direction
- minor to negligiblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“crop injury from herbicide treatments was minor to negligible with some exceptions”
Claim · model-written summary
Imazamox treatments caused minor, transient winter wheat injury at some locations in some years.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- imazamoxe0
- Outcome
- winter wheat crop injurye0
- Direction
- minor, transiente0
- Qualifier
- at some locations in some yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments containing imazamox or mesosulfuron produced minor, transient winter wheat crop injury at some locations in some years”
Claim · model-written summary
Mesosulfuron treatments caused minor, transient winter wheat injury at some locations in some years.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- mesosulfurone0
- Outcome
- winter wheat crop injurye0
- Direction
- minor, transiente0
- Qualifier
- at some locations in some yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments containing imazamox or mesosulfuron produced minor, transient winter wheat crop injury at some locations in some years”
Claim · model-written summary
Flufenacet applied preemergence was an exception to otherwise variable single-application rattail fescue control.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- flufenacet applied preemergencee0
- Interactor
- rattail fescuee0weed
- Outcome
- control of rattail fescue in wheate0
- Comparator
- single herbicide applicationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“With the exception of flufenacet applied preemergence (PRE), control of rattail fescue in wheat was variable with single herbicide applications”
Claim · model-written summary
Sequential herbicide treatments improved rattail fescue control in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- sequential herbicide treatmentse0
- Interactor
- rattail fescuee0weed
- Outcome
- control of rattail fescuee0
- Direction
- improvede0
- Comparator
- single herbicide applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of rattail fescue in wheat was variable with single herbicide applications, but improved with sequential herbicide treatments”
Claim · model-written summary
Flufenacet-containing treatments greatly reduced rattail fescue biomass.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- flufenacete0
- Interactor
- Rattail fescuee0weed
- Outcome
- Rattail fescue biomasse0
- Direction
- greatly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Rattail fescue biomass was greatly reduced by several treatments especially those containing flufenacet”
Claim · model-written summary
Sequential herbicide application greatly reduced rattail fescue biomass.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- sequential herbicide applicatione0
- Interactor
- Rattail fescuee0weed
- Outcome
- Rattail fescue biomasse0
- Direction
- greatly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Rattail fescue biomass was greatly reduced by several treatments especially those containing flufenacet or from sequential herbicide application”
Claim · model-written summary
Wheat yield varied among sites with growing-season precipitation.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- Crop yielde0
- Direction
- variede0
- Qualifier
- growing season precipitatione0
- Setting
- sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Crop yield varied among sites due to growing season precipitation”
Claim · model-written summary
In some cases, rattail fescue control affected wheat yield.
- Taxon
- Winter WheatTriticum aestivumt0
- Interactor
- rattail fescuee0weed
- Outcome
- Crop yielde0
- Direction
- variede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Crop yield varied among sites due to growing season precipitation, and in some cases from rattail fescue control”
Claim · model-written summary
In some cases, herbicide-related wheat injury affected crop yield.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- herbicidee0
- Outcome
- Crop yielde0
- Direction
- variede0
- Qualifier
- crop injurye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Crop yield varied among sites due to growing season precipitation, and in some cases from rattail fescue control or herbicide related crop injury”
The same questions in other papers
flufenacet · growth · Triticum aestivum (wheat)Results agree
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- positive
imazamox · crop injury · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
herbicide · control · Triticum aestivum (wheat)Positive and negative results
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- positive
- no effect
- negative
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See all 52 papers →herbicide · growth · Triticum aestivum (wheat)Positive and negative results
63 papers in the same direction as this paper · 51 in the opposite direction · 1 reporting no difference from an alternative
- negative
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- negative
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See all 116 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.