Abstract
Fusarium head blight (FHB), caused primarily by Fusarium graminearum Schwabe, remains a devastating disease of wheat. In this study, experiments were conducted across six location-years to evaluate the efficacy of sequential fungicide applications during the flowering period for FHB control, yield, deoxynivalenol (DON) reduction, and profitability in hard red winter wheat. The sequential treatments consisted of an application of Miravis Ace (propiconazole + pydiflumetofen) at Feekes 10.5.1 followed 4 days later by an application of either Prosaro Pro (prothioconazole + fluopyram + tebuconazole), Sphaerex (prothioconazole + metconazole), or TebuStar (tebuconazole). The sequential treatments were compared with single applications of Prosaro 421 SC (prothioconazole + tebuconazole), Sphaerex, Prosaro Pro, and Miravis Ace at Feekes 10.5.1. A covariance analysis was used to evaluate the influence of the FHB index (%) in the nontreated check on yield, DON, and net profit provided by the fungicide treatments. When the FHB index was low (10%), there were no significant yield or DON improvements. At higher FHB index levels of 30 and 40%, all fungicide treatments resulted in improved DON and improved yield relative to the nontreated check. Treatments including an application of Miravis Ace resulted in higher net profit and yields compared with the other treatments evaluated. The sequential fungicide application programs did not result in a significant yield benefit over a single application of Miravis Ace alone at any FHB index level. The results of this study underscore the importance of a single, well-timed application of Miravis Ace for FHB management in Kansas.
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Claims 8
Claim · model-written summary
At a 10% FHB index, fungicides gave no significant yield improvement.
- Taxon
- winter wheat
Triticum aestivumt0 - Outcome
- yielde0
- Direction
- no significante0
- Qualifier
- FHB index was low (10%)e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the FHB index was low (10%), there were no significant yield or DON improvements.”
t0“winter wheat”
Claim · model-written summary
At a 10% FHB index, fungicides gave no significant DON improvement.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- DONe0
- Direction
- no significante0
- Qualifier
- FHB index was low (10%)e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the FHB index was low (10%), there were no significant yield or DON improvements.”
t0“winter wheat”
Claim · model-written summary
At FHB indices of 30 and 40%, all fungicide treatments improved DON relative to no treatment.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- all fungicide treatmentse0
- Outcome
- DONe0
- Direction
- improvede0
- Qualifier
- FHB index levels of 30 and 40%e0
- Comparator
- nontreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At higher FHB index levels of 30 and 40%, all fungicide treatments resulted in improved DON and improved yield relative to the nontreated check.”
t0“wheat”
Claim · model-written summary
At FHB indices of 30 and 40%, all fungicide treatments improved yield relative to no treatment.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- all fungicide treatmentse0
- Outcome
- yielde0
- Direction
- improvede0
- Qualifier
- FHB index levels of 30 and 40%e0
- Comparator
- nontreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At higher FHB index levels of 30 and 40%, all fungicide treatments resulted in improved DON and improved yield relative to the nontreated check.”
t0“wheat”
Claim · model-written summary
Treatments containing Miravis Ace yielded higher net profit than other treatments.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- application of Miravis Acee0
- Outcome
- net profite0
- Direction
- highere0
- Comparator
- other treatments evaluatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments including an application of Miravis Ace resulted in higher net profit and yields compared with the other treatments evaluated.”
t0“wheat”
Claim · model-written summary
Treatments containing Miravis Ace yielded more wheat than other treatments.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- application of Miravis Acee0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- other treatments evaluatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments including an application of Miravis Ace resulted in higher net profit and yields compared with the other treatments evaluated.”
t0“wheat”
Claim · model-written summary
Sequential programs did not significantly outperform one Miravis Ace application for yield at any FHB level.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sequential fungicide application programse0
- Outcome
- yield benefite0
- Direction
- did not resulte0
- Qualifier
- at any FHB index levele0
- Comparator
- a single application of Miravis Ace alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sequential fungicide application programs did not result in a significant yield benefit over a single application of Miravis Ace alone at any FHB index level.”
t0“wheat”
Claim · model-written summary
The authors favor a single well-timed Miravis Ace application for FHB management in Kansas.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- a single, well-timed application of Miravis Acee0
- Setting
- Kansase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a single, well-timed application of Miravis Ace for FHB management in Kansas.”
t0“wheat”
The same questions in other papers
fungicide · disease · Triticum aestivum (wheat)Positive and negative results
134 papers in the same direction as this paper · 19 in the opposite direction · 3 reporting no difference from an alternative
- positive
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See all 157 papers →fungicide · yield · Triticum aestivum (wheat)Positive and negative results
231 papers in the same direction as this paper · 30 in the opposite direction
- positive
- positive
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See all 262 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.