Abstract
Cowpea is an important food legume and versatile crop in the savannas of northeast Nigeria. Despite the high potential for production in this region, insect pests are a major constraint. A study was conducted to evaluate the response of diverse cowpea genotypes to different schedules of spraying with an insecticide. The study revealed that flower thrips the legume pod borer, (Maruca), and a range of pod sucking bugs were the major insect pests. Application of insecticides increased grain yield by 75-126% depending on the frequency of spraying. Improved cultivars recorded a higher grain yield than the local checks at all spraying regimes. The cultivar IT98K-131-2 recorded higher grain yield when no insecticide was applied suggesting that this cultivar was either tolerant or resistant to the insect pests.
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Claims 6
Claim · model-written summary
Flower thrips were a major cowpea pest.
- Taxon
- Cowpea
Vigna unguiculatat0 - Interactor
- flower thripse0pest
- Outcome
- major insect pestse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flower thrips the legume pod borer, (Maruca), and a range of pod sucking bugs were the major insect pests.”
t0“cowpea”
Claim · model-written summary
The legume pod borer Maruca was a major cowpea pest.
- Taxon
- CowpeaVigna unguiculatat0
- Outcome
- major insect pestse0
MarucaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flower thrips the legume pod borer, (Maruca), and a range of pod sucking bugs were the major insect pests.”
t0“cowpea”
Claim · model-written summary
Pod sucking bugs were major cowpea pests.
- Taxon
- CowpeaVigna unguiculatat0
- Interactor
- pod sucking bugse0pest
- Outcome
- major insect pestse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a range of pod sucking bugs were the major insect pests.”
t0“cowpea”
Claim · model-written summary
Insecticide application increased cowpea grain yield by 75-126%, depending on spray frequency.
- Taxon
- CowpeaVigna unguiculatat0
- Treatment
- Application of insecticidese0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 75-126%e0
- Qualifier
- depending on the frequency of sprayinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of insecticides increased grain yield by 75-126% depending on the frequency of spraying.”
t0“cowpea”
Claim · model-written summary
Improved cultivars had higher grain yield than local checks at every spraying regime.
- Taxon
- CowpeaVigna unguiculatat0
- Material
- Improved cultivarse0
- Outcome
- grain yielde0
- Direction
- highere0
- Qualifier
- at all spraying regimese0
- Comparator
- local checkse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Improved cultivars recorded a higher grain yield than the local checks at all spraying regimes.”
t0“cowpea”
Claim · model-written summary
IT98K-131-2 had higher grain yield without insecticide application.
- Taxon
- CowpeaVigna unguiculatat0
- Material
- IT98K-131-2e0
- Outcome
- grain yielde0
- Direction
- highere0
- Qualifier
- when no insecticide was appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar IT98K-131-2 recorded higher grain yield when no insecticide was applied suggesting that this cultivar was either tolerant or resistant to the insect pests.”
t0“cowpea”
The same questions in other papers
insecticide · yield · Vigna unguiculata (cowpea)Positive and negative results
23 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- positive
- positive
24 papers more in this group
See all 28 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.