Abstract
Cowpea is regarded as one of the major source of dietary protein in many parts of Africa, but yield losses due to insect pests’ activities reduce available natural resources for human consumption. Field trials were conducted during the 2006 and 2007 cropping season at Mubi, Nigeria, to determine the effect of variety and intercropping on three major field insect pest of cowpea. The experimental treatments consist of two variety of cowpea via Kanannado white and Kanannado brown and intercrop of each variety of cowpea seed with sorghum arranged in a complete randomized block design. The population of aphids (Aphis craccivora Koch.) and thrips (Megalarothrips sjostedi Trybom) were significantly (P>0.05) lower in cowpea + sorghum intercrop in 2006 and 2007 cropping season than sole cowpea crop. Similarly in 2007 cropping season population maruca pod borer (Maruca vitreta) was significantly (P>0.05) lower in cowpea + sorghum intercrop than sole cowpea crop but in 2006 cropping season, the reverse was the case. By and large, the result of the study shows that cowpea + sorghum intercrop reduces populations of major field pests of cowpea.
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Claims 4
Claim · model-written summary
Aphid populations were lower in cowpea-sorghum intercrop than sole cowpea in 2006 and 2007.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- cowpea + sorghum intercrope0
- Interactor
- Aphis craccivora Koch.
Aphis craccivorae0pest - Outcome
- population of aphids (Aphis craccivora Koch.)e0
- Direction
- lowere0
- Comparator
- sole cowpea crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The population of aphids (Aphis craccivora Koch.) and thrips (Megalarothrips sjostedi Trybom) were significantly (P>0.05) lower in cowpea + sorghum intercrop in 2006 and 2007 cropping season than sole cowpea crop.”
Claim · model-written summary
Thrips populations were lower in cowpea-sorghum intercrop than sole cowpea in 2006 and 2007.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- cowpea + sorghum intercrope0
- Interactor
- Megalarothrips sjostedi Trybome0pest
- Outcome
- thrips (Megalarothrips sjostedi Trybom)e0
- Direction
- lowere0
- Comparator
- sole cowpea crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The population of aphids (Aphis craccivora Koch.) and thrips (Megalarothrips sjostedi Trybom) were significantly (P>0.05) lower in cowpea + sorghum intercrop in 2006 and 2007 cropping season than sole cowpea crop.”
Claim · model-written summary
Maruca pod borer populations were lower in the intercrop in 2007 than sole cowpea.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- cowpea + sorghum intercrope0
- Interactor
- Maruca vitretae0pest
- Outcome
- population maruca pod borer (Maruca vitreta)e0
- Direction
- lowere0
- Comparator
- sole cowpea crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2007 cropping season population maruca pod borer (Maruca vitreta) was significantly (P>0.05) lower in cowpea + sorghum intercrop than sole cowpea crop”
t0“cowpea”
Claim · model-written summary
Maruca pod borer populations showed the reverse relationship in 2006.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- reverse was the casee0
- Direction
- reversee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but in 2006 cropping season, the reverse was the case.”
t0“cowpea”
The same questions in other papers
Sorghum · pest · Vigna unguiculata (cowpea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
intercropping · Aphis craccivora · Vigna unguiculata (cowpea)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
intercropping · pest · Vigna unguiculata (cowpea)Positive and negative results
7 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- no effect
8 papers more in this group
See all 12 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.