Abstract
The intensive use of fungicides in controlling soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi, may have accelerated the insensitivity of P. pachyrhizi populations to fungicides. The objective of this study was to determine the effect of selected biopesticides and their application time on reducing SBR infection. There were differences (P < 0.05) in percent rust reduction values for application times, biopesticide treatments, and their interaction in detached-leaf and whole-plant greenhouse experiments. All application times and nearly all biopesticide treatments reduced (α = 0.05) fungal infection compared with the nonfungicide control. Among the treatments, Bacillus subtilis QST 713 and acibenzolar-S-methyl often reduced fungal sporulation more than the other treatments in detached-leaf and whole-plant greenhouse experiments. The identification of biopesticides effective to P. pachyrhizi may be a valuable alternative or complement to synthetic fungicides and may be useful in integrated pest management programs for SBR control.
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Claims 7
Claim · model-written summary
Rust reduction differed significantly among application times.
- Taxon
- soybean
Glycine maxe1 - Treatment
- application timese0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- percent rust reduction valuese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were differences (P < 0.05) in percent rust reduction values for application times”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
Rust reduction differed significantly among biopesticide treatments.
- Taxon
- soybeanGlycine maxe1
- Treatment
- biopesticide treatmentse0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- percent rust reduction valuese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were differences (P < 0.05) in percent rust reduction values for application times, biopesticide treatments”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
Application timing and biopesticide treatment interacted significantly for rust reduction.
- Taxon
- soybeanGlycine maxe1
- Treatment
- application times, biopesticide treatments, and their interactione0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- percent rust reduction valuese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were differences (P < 0.05) in percent rust reduction values for application times, biopesticide treatments, and their interaction”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
All application times reduced fungal infection relative to the nonfungicide control.
- Taxon
- soybeanGlycine maxe1
- Treatment
- All application timese0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- fungal infectione0
- Direction
- reducede0
- Comparator
- nonfungicide controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All application times and nearly all biopesticide treatments reduced (α = 0.05) fungal infection compared with the nonfungicide control.”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
Nearly all biopesticide treatments reduced fungal infection relative to the nonfungicide control.
- Taxon
- soybeanGlycine maxe1
- Treatment
- biopesticide treatmentse0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- fungal infectione0
- Direction
- reducede0
- Qualifier
- nearly alle0
- Comparator
- nonfungicide controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All application times and nearly all biopesticide treatments reduced (α = 0.05) fungal infection compared with the nonfungicide control.”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
Bacillus subtilis QST 713 often reduced pathogen sporulation more than other treatments.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Bacillus subtilis QST 713e0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Second interactor
- Bacillus subtilis QST 713
Bacillus subtilise0biocontrol_agent - Outcome
- fungal sporulatione0
- Direction
- reducede0
- Comparator
- the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis QST 713 and acibenzolar-S-methyl often reduced fungal sporulation more than the other treatments”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
Claim · model-written summary
Acibenzolar-S-methyl often reduced pathogen sporulation more than other treatments.
- Taxon
- soybeanGlycine maxe1
- Treatment
- acibenzolar-S-methyle0
- Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie1pathogen
- Outcome
- fungal sporulatione0
- Direction
- reducede0
- Comparator
- the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis QST 713 and acibenzolar-S-methyl often reduced fungal sporulation more than the other treatments”
e1“soybean rust (SBR), a damaging foliar fungal disease of soybean caused by the obligate fungus Phakopsora pachyrhizi”
The same questions in other papers
Bacillus subtilis · Phakopsora pachyrhizi · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
acibenzolar-S-methyl · Phakopsora pachyrhizi · Glycine max (soybean)Results agree
4 papers in the same direction as this paper
- positive
- positive
- 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.