Paper · 2025 · Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology

Assessment of Plant Growth Responses and Root-Knot Nematode Control Using Three Pesticides with Diverse Action Mechanisms

A. M. Ali

16
claims
33
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

This study evaluated seed treatment with emamectin benzoate, fosthiazate, and thiacloprid as an alternative to soil application for managing Meloidogyne incognita in tomato plants grown in clay and sandy soils under greenhouse conditions (30 ± 5°C). Pesticides were applied at 200, 400, 600, and 1000 ppm, and effects on seed viability, vegetative growth (germination, shoot, and root length), and nematode development were assessed at 7, 14, and 21 days. Emamectin benzoate exhibited the least phytotoxicity, maintaining up to 100% germination at 400 ppm in clay soil, with shoot/root lengths significantly greater than other treatments. Thiacloprid caused the greatest reductions in germination (down to 20% at 600 ppm in clay) and growth, especially in sandy soil. Nematode infestation parameters (nematode count, gall and egg mass numbers) were significantly suppressed by emamectin benzoate, which reduced nematode numbers by 49.13%, galls by 73.85%, and egg masses by 31.55% at 1000 ppm in clay soil. Fosthiazate showed moderate control, while thiacloprid was least effective. Nematode reproduction factor (RF) values were consistently lower in clay soil, with emamectin benzoate reducing RF from 2.34 to 1.75 at 7 days (200 to 1000 ppm). Sandy soil exhibited higher nematode pressure and reduced pesticide efficacy, likely due to leaching. Statistical analysis confirmed significant interactions between soil type, pesticide, and concentration. Overall, emamectin benzoate is recommended for nematode management in tomato, particularly at higher doses and in clay soils, to optimize both nematode suppression and seedling growth .

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Emamectin benzoate exhibited the least phytotoxicity.

Treatment
Emamectin benzoatee1
Outcome
phytotoxicitye1
Direction
leaste1
Setting
greenhouse conditionse0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Emamectin benzoate exhibited the least phytotoxicity, maintaining up to 100% germination at 400 ppm in clay soil”

✓ located verbatim in the source · abstract, characters 456–568 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Emamectin benzoate maintained up to 100% germination at 400 ppm in clay soil.

Treatment
Emamectin benzoatee1
Outcome
germinatione1
Direction
maintaininge1
Value
up to 100%e1
Qualifier
400 ppme1
Setting
clay soile1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Emamectin benzoate exhibited the least phytotoxicity, maintaining up to 100% germination at 400 ppm in clay soil”

✓ located verbatim in the source · abstract, characters 456–568 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Thiacloprid reduced germination to as low as 20% at 600 ppm in clay.

Treatment
Thiaclopride1
Outcome
germinatione1
Direction
reductionse1
Value
down to 20%e1
Setting
claye1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Thiacloprid caused the greatest reductions in germination (down to 20% at 600 ppm in clay) and growth, especially in sandy soil”

✓ located verbatim in the source · abstract, characters 639–766 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Thiacloprid reduced growth, especially in sandy soil.

Treatment
Thiaclopride1
Outcome
growthe1
Direction
reductionse1
Setting
sandy soile1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Thiacloprid caused the greatest reductions in germination (down to 20% at 600 ppm in clay) and growth, especially in sandy soil”

✓ located verbatim in the source · abstract, characters 639–766 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Emamectin benzoate reduced nematode numbers by 49.13% at 1000 ppm in clay soil.

Treatment
emamectin benzoatee1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
nematode numberse1
Direction
reducede1
Value
49.13%e1
Setting
clay soile1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“Nematode infestation parameters (nematode count, gall and egg mass numbers) were significantly suppressed by emamectin benzoate, which reduced nematode numbers by 49.13%, galls by 73.85%, and egg masses by 31.55% at 1000 ppm in clay soil”

✓ located verbatim in the source · abstract, characters 768–1005 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Emamectin benzoate reduced galls by 73.85% at 1000 ppm in clay soil.

Treatment
emamectin benzoatee1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
gallse1
Direction
reducede1
Value
73.85%e1
Setting
clay soile1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“Nematode infestation parameters (nematode count, gall and egg mass numbers) were significantly suppressed by emamectin benzoate, which reduced nematode numbers by 49.13%, galls by 73.85%, and egg masses by 31.55% at 1000 ppm in clay soil”

✓ located verbatim in the source · abstract, characters 768–1005 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Emamectin benzoate reduced egg masses by 31.55% at 1000 ppm in clay soil.

Treatment
emamectin benzoatee1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
egg massese1
Direction
reducede1
Value
31.55%e1
Setting
clay soile1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“Nematode infestation parameters (nematode count, gall and egg mass numbers) were significantly suppressed by emamectin benzoate, which reduced nematode numbers by 49.13%, galls by 73.85%, and egg masses by 31.55% at 1000 ppm in clay soil”

✓ located verbatim in the source · abstract, characters 768–1005 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fosthiazate showed moderate nematode control.

Treatment
Fosthiazatee1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
controle1
Direction
moderatee1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“Fosthiazate showed moderate control, while thiacloprid was least effective”

✓ located verbatim in the source · abstract, characters 1007–1081 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Thiacloprid was the least effective nematode control agent.

Treatment
thiaclopride1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
controle1
Direction
least effectivee1
Comparator
Fosthiazatee1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“Fosthiazate showed moderate control, while thiacloprid was least effective”

✓ located verbatim in the source · abstract, characters 1007–1081 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sandy soil exhibited higher nematode pressure.

Treatment
Sandy soile1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
nematode pressuree1
Direction
highere1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants grown in clay and sandy soils”

✓ located verbatim in the source · abstract, characters 132–209 · show in text ↑
e1

“Sandy soil exhibited higher nematode pressure and reduced pesticide efficacy, likely due to leaching”

✓ located verbatim in the source · abstract, characters 1245–1345 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sandy soil reduced pesticide efficacy, likely due to leaching.

Treatment
Sandy soile1
Outcome
pesticide efficacye1
Direction
reducede1
Qualifier
likely due to leachinge1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants grown in clay and sandy soils”

✓ located verbatim in the source · abstract, characters 132–209 · show in text ↑
e1

“Sandy soil exhibited higher nematode pressure and reduced pesticide efficacy, likely due to leaching”

✓ located verbatim in the source · abstract, characters 1245–1345 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nematode reproduction factor values were consistently lower in clay soil.

Treatment
clay soile1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
Nematode reproduction factor (RF) valuese1
Direction
consistently lowere1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants grown in clay and sandy soils”

✓ located verbatim in the source · abstract, characters 132–209 · show in text ↑
e1

“Nematode reproduction factor (RF) values were consistently lower in clay soil”

✓ located verbatim in the source · abstract, characters 1083–1160 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Emamectin benzoate reduced the nematode reproduction factor from 2.34 to 1.75 at 7 days.

Treatment
emamectin benzoatee1
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
RFe1
Direction
reducinge1
Value
from 2.34 to 1.75e1
Qualifier
at 7 days (200 to 1000 ppm)e1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“managing Meloidogyne incognita in tomato plants”

✓ located verbatim in the source · abstract, characters 132–179 · show in text ↑
e1

“emamectin benzoate reducing RF from 2.34 to 1.75 at 7 days (200 to 1000 ppm)”

✓ located verbatim in the source · abstract, characters 1167–1243 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Shoot and root lengths under emamectin benzoate were significantly greater than under other treatments.

Treatment
Emamectin benzoatee1
Outcome
shoot/root lengthse2
Direction
greatere2
Comparator
other treatmentse2

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Emamectin benzoate exhibited the least phytotoxicity”

✓ located verbatim in the source · abstract, characters 456–508 · show in text ↑
e2

“with shoot/root lengths significantly greater than other treatments”

✓ located verbatim in the source · abstract, characters 570–637 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Statistical analysis confirmed significant interactions between soil type, pesticide and concentration.

Treatment
soil type, pesticide, and concentratione1
Outcome
interactionse1

Not reportedDirection

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“Statistical analysis confirmed significant interactions between soil type, pesticide, and concentration”

✓ located verbatim in the source · abstract, characters 1347–1450 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Emamectin benzoate is recommended for nematode management in tomato.

Treatment
emamectin benzoatee1
Outcome
nematode managemente1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomato plants grown in clay and sandy soils under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 166–237 · show in text ↑
e1

“emamectin benzoate is recommended for nematode management in tomato”

✓ located verbatim in the source · abstract, characters 1461–1528 · show in text ↑

thiacloprid · growth · Solanum lycopersicum (tomato)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

thiacloprid · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

emamectin benzoate · crop injury · Solanum lycopersicum (tomato)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 →

emamectin benzoate · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

fosthiazate · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.