Paper · 2000 · Plant Disease

Effect of Botanical Extracts on the Population Density of Fusarium oxysporum in Soil and Control of Fusarium Wilt in the Greenhouse

John H. Bowers; James C. Locke

10
claims
23
verbatim quotes
184
citations
2
research areas
—
Not open access

Abstract

Several commercial formulations of botanical extracts and essential oils are being investigated as possible alternatives to soil fumigation for control of Fusarium wilt diseases. Soil infested with Fusarium oxysporum f. sp. chrysanthemi was treated with 1, 5, and 10% aqueous emulsions of formulated extracts of clove (70% clove oil), neem (90% neem oil), pepper/mustard (chili pepper extract and essential oil of mustard), cassia (extract of cassia tree), and Banrot (a standard fungicide applied at different labeled rates) in separate experiments. Population densities of F. oxysporum f. sp. chrysanthemi were determined at 0 (before treatment), 1, 3, 7, 14, and 21 days after treatment. Treatment of the soil with 5 and 10% aqueous emulsions resulted in significant (P < 0.05) differences among treatment means at each assay date. After 3 days, pepper/mustard, cassia, and clove extracts added as 10% aqueous emulsions reduced the population density of F. oxysporum f. sp. chrysanthemi 99.9, 96.1, and 97.5%, respectively, compared with the untreated control. Neem oil extract increased the population density of F. oxysporum f. sp. chrysanthemi at all concentrations tested. Banrot did not reduce the population density of F. oxysporum f. sp. chrysanthemi in any experiment. In a second, related experiment, soil infested with Fusarium oxysporum f. sp. melonis also was treated with 1, 5, and 10% aqueous emulsions of formulated extracts, incubated in closed plastic bags for 1 week, and planted with muskmelon seeds (cv. Gold Star) in the greenhouse. Treatment of infested soil with 5 and 10% aqueous emulsions of the botanical extracts resulted in differences among treatments after 5 to 6 weeks. The pepper/mustard, cassia, and clove extracts suppressed disease development in repeated experiments (80 to 100% healthy plant stand) compared with the untreated infested soil (<20% stand). The observed reduction in the pathogen population and increased healthy plant stand in the greenhouse indicates that these extracts could have important roles in biologically based management strategies for control of Fusarium wilt diseases.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pepper/mustard at 10% reduced the chrysanthemi pathogen population by 99.9% after 3 days.

Taxon
muskmelonCucumis meloe1
Treatment
pepper/mustarde0
Interactor
F. oxysporum f. sp. chrysanthemiFusarium oxysporum f. sp. chrysanthemie0pathogen
Outcome
population density of F. oxysporum f. sp. chrysanthemie0
Direction
reducede0
Value
99.9e0
Comparator
untreated controle0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. chrysanthemi
Fusarium oxysporum f. sp. chrysanthemi · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“After 3 days, pepper/mustard, cassia, and clove extracts added as 10% aqueous emulsions reduced the population density of F. oxysporum f. sp. chrysanthemi 99.9, 96.1, and 97.5%, respectively, compared with the untreated control.”

✓ located verbatim in the source · abstract, characters 835–1063 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassia at 10% reduced the chrysanthemi pathogen population by 96.1% after 3 days.

Taxon
muskmelonCucumis meloe1
Treatment
cassiae0
Interactor
F. oxysporum f. sp. chrysanthemiFusarium oxysporum f. sp. chrysanthemie0pathogen
Outcome
population density of F. oxysporum f. sp. chrysanthemie0
Direction
reducede0
Value
96.1e0
Comparator
untreated controle0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. chrysanthemi
Fusarium oxysporum f. sp. chrysanthemi · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“After 3 days, pepper/mustard, cassia, and clove extracts added as 10% aqueous emulsions reduced the population density of F. oxysporum f. sp. chrysanthemi 99.9, 96.1, and 97.5%, respectively, compared with the untreated control.”

✓ located verbatim in the source · abstract, characters 835–1063 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clove at 10% reduced the chrysanthemi pathogen population by 97.5% after 3 days.

Taxon
muskmelonCucumis meloe1
Treatment
clove extractse0
Interactor
F. oxysporum f. sp. chrysanthemiFusarium oxysporum f. sp. chrysanthemie0pathogen
Outcome
population density of F. oxysporum f. sp. chrysanthemie0
Direction
reducede0
Value
97.5%e0
Comparator
untreated controle0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. chrysanthemi
Fusarium oxysporum f. sp. chrysanthemi · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“After 3 days, pepper/mustard, cassia, and clove extracts added as 10% aqueous emulsions reduced the population density of F. oxysporum f. sp. chrysanthemi 99.9, 96.1, and 97.5%, respectively, compared with the untreated control.”

✓ located verbatim in the source · abstract, characters 835–1063 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Neem oil extract increased the chrysanthemi pathogen population at all tested concentrations.

Taxon
muskmelonCucumis meloe1
Treatment
Neem oil extracte0
Interactor
F. oxysporum f. sp. chrysanthemiFusarium oxysporum f. sp. chrysanthemie0pathogen
Outcome
population density of F. oxysporum f. sp. chrysanthemie0
Direction
increasede0
Qualifier
at all concentrations testede0

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. chrysanthemi
Fusarium oxysporum f. sp. chrysanthemi · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Neem oil extract increased the population density of F. oxysporum f. sp. chrysanthemi at all concentrations tested.”

✓ located verbatim in the source · abstract, characters 1064–1179 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Banrot did not reduce the chrysanthemi pathogen population.

Taxon
muskmelonCucumis meloe1
Treatment
Banrote0
Interactor
F. oxysporum f. sp. chrysanthemiFusarium oxysporum f. sp. chrysanthemie0pathogen
Outcome
population density of F. oxysporum f. sp. chrysanthemie0
Direction
did not reducee0

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. chrysanthemi
Fusarium oxysporum f. sp. chrysanthemi · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Banrot did not reduce the population density of F. oxysporum f. sp. chrysanthemi in any experiment.”

✓ located verbatim in the source · abstract, characters 1180–1279 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The botanical extract treatments differed after 5 to 6 weeks in infested muskmelon soil.

Taxon
muskmelonCucumis meloe1
Treatment
5 and 10% aqueous emulsions of the botanical extractse0
Outcome
differences among treatmentse0
Qualifier
after 5 to 6 weekse0
Comparator
treatmentse0

Not reportedDirection

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Treatment of infested soil with 5 and 10% aqueous emulsions of the botanical extracts resulted in differences among treatments after 5 to 6 weeks.”

✓ located verbatim in the source · abstract, characters 1557–1703 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pepper/mustard suppressed Fusarium wilt, with 80 to 100% healthy muskmelon stand versus less than 20% in untreated infested soil.

Taxon
muskmelonCucumis meloe1
Treatment
pepper/mustarde0
Interactor
Fusarium oxysporum f. sp. melonisFusarium oxysporum f. sp. melonise2pathogen
Outcome
healthy plant stande0
Direction
suppressede0
Value
80 to 100%e0
Qualifier
<20% stande0
Comparator
untreated infested soile0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. melonis
Fusarium oxysporum f. sp. melonis · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“The pepper/mustard, cassia, and clove extracts suppressed disease development in repeated experiments (80 to 100% healthy plant stand) compared with the untreated infested soil (<20% stand).”

✓ located verbatim in the source · abstract, characters 1704–1894 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
e2

“soil infested with Fusarium oxysporum f. sp. melonis”

✓ located verbatim in the source · abstract, characters 1313–1365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassia suppressed Fusarium wilt, with 80 to 100% healthy muskmelon stand versus less than 20% in untreated infested soil.

Taxon
muskmelonCucumis meloe1
Treatment
cassiae0
Interactor
Fusarium oxysporum f. sp. melonisFusarium oxysporum f. sp. melonise2pathogen
Outcome
healthy plant stande0
Direction
suppressede0
Value
80 to 100%e0
Qualifier
<20% stande0
Comparator
untreated infested soile0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. melonis
Fusarium oxysporum f. sp. melonis · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“The pepper/mustard, cassia, and clove extracts suppressed disease development in repeated experiments (80 to 100% healthy plant stand) compared with the untreated infested soil (<20% stand).”

✓ located verbatim in the source · abstract, characters 1704–1894 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
e2

“soil infested with Fusarium oxysporum f. sp. melonis”

✓ located verbatim in the source · abstract, characters 1313–1365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clove suppressed Fusarium wilt, with 80 to 100% healthy muskmelon stand versus less than 20% in untreated infested soil.

Taxon
muskmelonCucumis meloe1
Treatment
clove extractse0
Interactor
Fusarium oxysporum f. sp. melonisFusarium oxysporum f. sp. melonise2pathogen
Outcome
healthy plant stande0
Direction
suppressede0
Value
80 to 100%e0
Qualifier
<20% stande0
Comparator
untreated infested soile0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗
Fusarium oxysporum f. sp. melonis
Fusarium oxysporum f. sp. melonis · Interactor · picture of its genus (no picture of exactly this name)Public domain · Wikimedia Commons ↗

Verbatim

e0

“The pepper/mustard, cassia, and clove extracts suppressed disease development in repeated experiments (80 to 100% healthy plant stand) compared with the untreated infested soil (<20% stand).”

✓ located verbatim in the source · abstract, characters 1704–1894 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑
e2

“soil infested with Fusarium oxysporum f. sp. melonis”

✓ located verbatim in the source · abstract, characters 1313–1365 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest these extracts for biological management of Fusarium wilt.

Taxon
muskmelonCucumis meloe1
Outcome
biologically based management strategies for control of Fusarium wilt diseasese0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“these extracts could have important roles in biologically based management strategies for control of Fusarium wilt diseases”

✓ located verbatim in the source · abstract, characters 2012–2135 · show in text ↑
e1

“muskmelon seeds (cv. Gold Star)”

✓ located verbatim in the source · abstract, characters 1506–1537 · show in text ↑

botanical · Fusarium oxysporum f. sp. melonis · Cucumis melo (muskmelon)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.