Paper · 2026 · International Journal of Plant & Soil Science

Evaluation of Fungicides and Biocontrol Agents for Managing Powdery Mildew Disease in Okra

Abhishekh Barala; J K Babele; Saurabh Singh; et al.

10
claims
24
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted during the Kharif season of 2024 at the Chemical Agriculture Research Farm, Narayan Bagh, Bundelkhand University, Jhansi (U.P.), to evaluate the efficacy of various fungicidal, botanical, and biological treatments against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.). The study was laid out in a Randomized Block Design with nine treatments and three replications, using the susceptible variety UPRI-900. Disease incidence and severity were recorded at four intervals: initial appearance and after three successive spray applications. Results revealed that Sulphur 0.3% (T1) was the most effective treatment, achieving the lowest mean disease incidence (17.80%) and highest per cent disease control (63.94%), followed by Hexaconazole 0.1% (T2) and Propiconazole 0.1% (T3). Biopesticides like Neem oil (T5) and Trichoderma spp. (T6, T7) showed moderate efficacy but were less effective under high disease pressure. Dinocap 4% (T8) performed poorly, recording the highest disease severity among treated plots. The untreated control (T9) exhibited maximum disease progression, underlining the need for timely disease management. The study concludes that Sulphur, Hexaconazole, and Propiconazole can be effectively integrated into powdery mildew management strategies in okra, while biocontrol agents offer sustainable alternatives under low to moderate disease pressure.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulphur 0.3% was the most effective treatment, with the lowest mean powdery mildew incidence (17.80%).

Treatment
Sulphur 0.3% (T1)e2
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
mean disease incidencee2
Direction
loweste2
Value
17.80%e2
Setting
Jhansi (U.P.)e0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A field experiment was conducted during the Kharif season of 2024 at the Chemical Agriculture Research Farm, Narayan Bagh, Bundelkhand University, Jhansi (U.P.)”

✓ located verbatim in the source · abstract, characters 0–160 · show in text ↑
e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“Sulphur 0.3% (T1) was the most effective treatment, achieving the lowest mean disease incidence (17.80%)”

✓ located verbatim in the source · abstract, characters 621–725 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulphur 0.3% gave the highest powdery mildew control (63.94%).

Treatment
Sulphur 0.3% (T1)e2
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
per cent disease controle3
Direction
higheste3
Value
63.94%e3

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“Sulphur 0.3% (T1) was the most effective treatment, achieving the lowest mean disease incidence (17.80%)”

✓ located verbatim in the source · abstract, characters 621–725 · show in text ↑
e3

“highest per cent disease control (63.94%)”

✓ located verbatim in the source · abstract, characters 730–771 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hexaconazole 0.1% was the next most effective treatment after Sulphur 0.3% against powdery mildew.

Treatment
Hexaconazole 0.1% (T2)e4
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
most effectivee2
Direction
followed bye4
Comparator
Sulphur 0.3% (T1)e2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“Sulphur 0.3% (T1) was the most effective treatment, achieving the lowest mean disease incidence (17.80%)”

✓ located verbatim in the source · abstract, characters 621–725 · show in text ↑
e4

“followed by Hexaconazole 0.1% (T2) and Propiconazole 0.1% (T3)”

✓ located verbatim in the source · abstract, characters 773–835 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Propiconazole 0.1% was the next most effective treatment after Sulphur 0.3% against powdery mildew.

Treatment
Propiconazole 0.1% (T3)e4
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
most effectivee2
Direction
followed bye4
Comparator
Sulphur 0.3% (T1)e2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“Sulphur 0.3% (T1) was the most effective treatment, achieving the lowest mean disease incidence (17.80%)”

✓ located verbatim in the source · abstract, characters 621–725 · show in text ↑
e4

“followed by Hexaconazole 0.1% (T2) and Propiconazole 0.1% (T3)”

✓ located verbatim in the source · abstract, characters 773–835 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem oil showed moderate efficacy against powdery mildew but was less effective under high disease pressure.

Treatment
Neem oil (T5)e5
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
efficacye5
Direction
moderatee5
Qualifier
less effective under high disease pressuree5

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e5

“Biopesticides like Neem oil (T5) and Trichoderma spp. (T6, T7) showed moderate efficacy but were less effective under high disease pressure”

✓ located verbatim in the source · abstract, characters 837–976 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Trichoderma spp. showed moderate efficacy against powdery mildew but was less effective under high disease pressure.

Treatment
Trichoderma spp. (T6, T7)e5
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Second interactor
Trichoderma spp.Trichodermae5biocontrol_agent
Outcome
efficacye5
Direction
moderatee5
Qualifier
less effective under high disease pressuree5

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗
Trichoderma
Trichoderma · Second interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e5

“Biopesticides like Neem oil (T5) and Trichoderma spp. (T6, T7) showed moderate efficacy but were less effective under high disease pressure”

✓ located verbatim in the source · abstract, characters 837–976 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dinocap 4% performed poorly and had the highest disease severity among treated plots.

Treatment
Dinocap 4% (T8)e6
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
disease severitye6
Direction
higheste6
Comparator
treated plotse6

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e6

“Dinocap 4% (T8) performed poorly, recording the highest disease severity among treated plots”

✓ located verbatim in the source · abstract, characters 978–1070 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The untreated control (T9) showed maximum powdery mildew disease progression.

Outcome
disease progressione7
Qualifier
maximume7

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e7

“The untreated control (T9) exhibited maximum disease progression”

✓ located verbatim in the source · abstract, characters 1072–1136 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Sulphur, hexaconazole and propiconazole can be effectively integrated into powdery mildew management strategies in okra.

Outcome
integrated into powdery mildew management strategiese2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“The study concludes that Sulphur, Hexaconazole, and Propiconazole can be effectively integrated into powdery mildew management strategies in okra”

✓ located verbatim in the source · abstract, characters 1190–1335 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Biocontrol agents offer sustainable alternatives for okra powdery mildew under low to moderate disease pressure.

Outcome
sustainable alternatives under low to moderate disease pressuree2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“against powdery mildew (Erysiphe cichoracearum) in okra (Abelmoschus esculentus L.)”

✓ located verbatim in the source · abstract, characters 247–330 · show in text ↑
e2

“biocontrol agents offer sustainable alternatives under low to moderate disease pressure”

✓ located verbatim in the source · abstract, characters 1343–1430 · show in text ↑

sulfur atom · Golovinomyces cichoracearum · Abelmoschus esculentus (okra)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 →

hexaconazole · Golovinomyces cichoracearum · Abelmoschus esculentus (okra)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

propiconazole · Golovinomyces cichoracearum · Abelmoschus esculentus (okra)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

botanical · Golovinomyces cichoracearum · Abelmoschus esculentus (okra)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. 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.