Paper · 1991 · Experimental Agriculture

Observations on Insect Infestation and Damage in Cowpea (Vigna Unguiculata) Intercropped With Tomato (Lycopersicon Esculentum) in a Rain Forest Area of Nigeria

T. I. Ofuya

8
claims
8
verbatim quotes
17
citations
2
research areas
—
Not open access

Abstract

SUMMARY Insect infestation and damage in cowpea ( Vigna unguiculala ), planted sole or intercropped with tomato ( Lycopersicon esculentum ) was monitored in 1987 and 1988 in Akure, Nigeria. Infestation of cowpea by Empoasca dolichi was significantly reduced by intercropping with tomato in both years, except in the early season of 1988. Infestation of cowpea by Ootheca mutabilis, Aphis craccivora, Megalurothrips sjosledti and Maruca testulalis was not affected by intercropping with tomato in either year. Damage by pod-sucking bugs and Heliothis armigera was significantly higher in sole cowpea than in cowpea intercropped with tomato, in both years. Sole cowpea had a significantly lower seed yield than cowpea intercropped with tomato. Observaciones en cuanto a la infestación de insectos y daños en el caupí (Vigna unguiculata) sembrado en forma simultánea con tomate (Lycopersicon esculentum) en una zona de bosque tropical en Nigeria

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Tomato intercropping reduced Empoasca dolichi infestation of cowpea in both years except early 1988.

Treatment
intercropping with tomatoe0
Interactor
Empoasca dolichiMatsumurasca dolichie0
Outcome
Infestation of cowpea by Empoasca dolichie0
Direction
reducede0
Qualifier
except in the early season of 1988e0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Infestation of cowpea by Empoasca dolichi was significantly reduced by intercropping with tomato in both years, except in the early season of 1988”

✓ located verbatim in the source · abstract, characters 190–336 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tomato intercropping did not affect Ootheca mutabilis infestation.

Treatment
intercropping with tomatoe0
Interactor
Ootheca mutabilisOotheca mutabilise0
Outcome
Infestation of cowpea by Ootheca mutabilise0
Direction
not affectede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Infestation of cowpea by Ootheca mutabilis, Aphis craccivora, Megalurothrips sjosledti and Maruca testulalis was not affected by intercropping with tomato in either year”

✓ located verbatim in the source · abstract, characters 338–507 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tomato intercropping did not affect Aphis craccivora infestation.

Treatment
intercropping with tomatoe0
Interactor
Aphis craccivoraAphis craccivorae0
Outcome
Infestation of cowpeae0
Direction
not affectede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Aphis craccivora
Aphis craccivora · InteractorSimon Hinkley & Ken Walker Museum Victoria · CC BY 3.0 au · Wikimedia Commons ↗

Verbatim

e0

“Infestation of cowpea by Ootheca mutabilis, Aphis craccivora, Megalurothrips sjosledti and Maruca testulalis was not affected by intercropping with tomato in either year”

✓ located verbatim in the source · abstract, characters 338–507 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tomato intercropping did not affect Megalurothrips sjosledti infestation.

Treatment
intercropping with tomatoe0
Interactor
Megalurothrips sjosledtie0
Outcome
Infestation of cowpeae0
Direction
not affectede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Infestation of cowpea by Ootheca mutabilis, Aphis craccivora, Megalurothrips sjosledti and Maruca testulalis was not affected by intercropping with tomato in either year”

✓ located verbatim in the source · abstract, characters 338–507 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tomato intercropping did not affect Maruca testulalis infestation.

Treatment
intercropping with tomatoe0
Interactor
Maruca testulalisMaruca testulalise0
Outcome
Infestation of cowpeae0
Direction
not affectede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Maruca testulalis
Maruca testulalis · InteractorCharles J. Sharp · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Infestation of cowpea by Ootheca mutabilis, Aphis craccivora, Megalurothrips sjosledti and Maruca testulalis was not affected by intercropping with tomato in either year”

✓ located verbatim in the source · abstract, characters 338–507 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pod-sucking bug damage was higher in sole cowpea than intercropped cowpea.

Treatment
cowpea intercropped with tomatoe0
Interactor
pod-sucking bugse0
Outcome
Damage by pod-sucking bugse0
Direction
highere0
Comparator
sole cowpeae0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Damage by pod-sucking bugs and Heliothis armigera was significantly higher in sole cowpea than in cowpea intercropped with tomato, in both years”

✓ located verbatim in the source · abstract, characters 509–653 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Heliothis armigera damage was higher in sole cowpea than intercropped cowpea.

Treatment
cowpea intercropped with tomatoe0
Interactor
Heliothis armigeraHelicoverpa armigerae0
Outcome
Damagee0
Direction
highere0
Comparator
sole cowpeae0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Helicoverpa armigera
Helicoverpa armigera · InteractorRaimundo Pastor · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Damage by pod-sucking bugs and Heliothis armigera was significantly higher in sole cowpea than in cowpea intercropped with tomato, in both years”

✓ located verbatim in the source · abstract, characters 509–653 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sole cowpea had lower seed yield than cowpea intercropped with tomato.

Treatment
cowpea intercropped with tomatoe0
Outcome
seed yielde0
Direction
lowere0
Comparator
Sole cowpeae0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sole cowpea had a significantly lower seed yield than cowpea intercropped with tomato”

✓ located verbatim in the source · abstract, characters 655–740 · show in text ↑

Solanum lycopersicum · yield · Vigna unguiculata (cowpea)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
See all 3 papers →

intercropping · yield · Vigna unguiculata (cowpea)Results differ

103 papers: 63 positive, 40 negative or no effect

62 papers in the same direction as this paper · 33 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

99 papers more in this group

See all 103 papers →

intercropping · Aphis craccivora · Vigna unguiculata (cowpea)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

3 in the opposite direction

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

intercropping · pest · Vigna unguiculata (cowpea)Positive and negative results

12 papers: 8 positive, 4 negative or no effect

7 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. no effect
  3. negative

8 papers more in this group

See all 12 papers →

intercropping · Ootheca mutabilis · Vigna unguiculata (cowpea)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
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.