Abstract
Pests are a menace to production of tomato (Lycopersicon esculentum Mill.) in sub-Sahara Africa. The objective of this study was to evaluate the efficacy of oil extracts of selected common plants for control of pests of tomato in Benin. The study was carried out on the Togba market garden sites in Benin. The botanical pesticides (Tephrosia purpurea, Ricinus communis, Thevetia neriifolia and Cashew Nut Shell Cold Liquid (CNSL cold) were compared with a biological insecticide (Topbio), a synthetic insecticide (Lambda cyhalothrin) and an untreated negative control. The fish model and the generalised linear mixed or fixed effects model were used to explain the number of caterpillars per plot as a function of the products tested during the different plant phases. Tephrosia purpurea oil, cold CNSL, Topbio and lambda cyhalothrin treatments significantly reduced H. armigera, S. littoralis and T. absoluta populations. The average yields of marketable tomato ranged from 7.20 ± 0.89 t ha-1 for the controls and 21.14 ± 3.56 and 20.46±1.98 t ha-1 for the plots treated with Tephrosia purpurea and CNSL cold on tomato, respectively. Plots treated with the synthetic insecticide lambda cyhalothrin gave the best yields (31.15±3.20 t ha-1). Of all the extracts tested, cold extracted CNSL and T. purpurea oil showed very high larvicidal activity at doses of 10%, compared to R. communis and T. neriifolia oil on the farm. The larvicidal activity of the extracts observed at low doses on H. armigera and S. littoralis larvae seems to offer an alternative advantage for the control of tomato pests.
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Claims 10
Claim · model-written summary
Tephrosia purpurea oil significantly reduced three tomato pest populations.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Tephrosia purpurea oile0
- Interactor
- H. armigerae0pest
- Outcome
- H. armigera, S. littoralis and T. absoluta populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tephrosia purpurea oil, cold CNSL, Topbio and lambda cyhalothrin treatments significantly reduced H. armigera, S. littoralis and T. absoluta populations.”
t0“tomato”
Claim · model-written summary
Cold CNSL significantly reduced three tomato pest populations.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cold CNSLe0
- Interactor
- H. armigerae0pest
- Outcome
- H. armigera, S. littoralis and T. absoluta populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cold CNSL, Topbio and lambda cyhalothrin treatments significantly reduced H. armigera, S. littoralis and T. absoluta populations.”
t0“tomato”
Claim · model-written summary
Topbio significantly reduced three tomato pest populations.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Topbioe0
- Interactor
- H. armigerae0pest
- Outcome
- H. armigera, S. littoralis and T. absoluta populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Topbio and lambda cyhalothrin treatments significantly reduced H. armigera, S. littoralis and T. absoluta populations.”
t0“tomato”
Claim · model-written summary
Lambda cyhalothrin significantly reduced three tomato pest populations.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- lambda cyhalothrine0
- Interactor
- H. armigerae0pest
- Outcome
- H. armigera, S. littoralis and T. absoluta populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lambda cyhalothrin treatments significantly reduced H. armigera, S. littoralis and T. absoluta populations.”
t0“tomato”
Claim · model-written summary
Tephrosia purpurea treated tomato yielded 21.14 ± 3.56 t ha-1 marketable fruit versus 7.20 ± 0.89 t ha-1 in controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Tephrosia purpureae0
- Outcome
- average yields of marketable tomatoe0
- Direction
- higherinferrede0
- Value
- 21.14 ± 3.56e0
- Qualifier
- 7.20 ± 0.89 t ha-1e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average yields of marketable tomato ranged from 7.20 ± 0.89 t ha-1 for the controls and 21.14 ± 3.56 and 20.46±1.98 t ha-1 for the plots treated with Tephrosia purpurea and CNSL cold on tomato, respectively.”
Claim · model-written summary
CNSL cold treated tomato yielded 20.46±1.98 t ha-1 marketable fruit versus 7.20 ± 0.89 t ha-1 in controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- CNSL colde0
- Outcome
- average yields of marketable tomatoe0
- Direction
- higherinferrede0
- Value
- 20.46±1.98 t ha-1e0
- Qualifier
- 7.20 ± 0.89 t ha-1e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average yields of marketable tomato ranged from 7.20 ± 0.89 t ha-1 for the controls and 21.14 ± 3.56 and 20.46±1.98 t ha-1 for the plots treated with Tephrosia purpurea and CNSL cold on tomato, respectively.”
Claim · model-written summary
Lambda cyhalothrin treated plots gave the best tomato yield of 31.15±3.20 t ha-1.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- lambda cyhalothrine0
- Outcome
- yieldse0
- Direction
- beste0
- Value
- 31.15±3.20 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plots treated with the synthetic insecticide lambda cyhalothrin gave the best yields (31.15±3.20 t ha-1).”
t0“tomato”
Claim · model-written summary
Cold extracted CNSL at 10% had very high larvicidal activity compared with Ricinus communis oil.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cold extracted CNSLe0
- Outcome
- larvicidal activitye0
- Direction
- very highe0
- Value
- 10%e0
- Comparator
- R. communise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cold extracted CNSL and T. purpurea oil showed very high larvicidal activity at doses of 10%, compared to R. communis and T. neriifolia oil on the farm.”
t0“tomato”
Claim · model-written summary
T. purpurea oil at 10% had very high larvicidal activity compared with T. neriifolia oil.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- T. purpurea oile0
- Outcome
- larvicidal activitye0
- Direction
- very highe0
- Value
- 10%e0
- Comparator
- T. neriifolia oile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cold extracted CNSL and T. purpurea oil showed very high larvicidal activity at doses of 10%, compared to R. communis and T. neriifolia oil on the farm.”
t0“tomato”
Claim · model-written summary
The authors propose low-dose extracts as an alternative for controlling tomato pests.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- H. armigerae0pest
- Outcome
- control of tomato pestse0
- Qualifier
- low dosese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The larvicidal activity of the extracts observed at low doses on H. armigera and S. littoralis larvae seems to offer an alternative advantage for the control of tomato pests.”
The same questions in other papers
lambda-cyhalothrin · pest · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
cold · pest · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
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See all 6 papers →cold · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
16 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
21 papers more in this group
See all 25 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.