Abstract
Cowpea is one of the most important grain legumes growing in Lomami province, DR Congo. Despite the high potential for production in this region, insect pests are the main problems of cowpea producers. They most often belong to the following categories: pod borers (Maruca vitrata), pod-sucking bug (PSB) complex of which Riptortus dentipes and Apium varium. A study was conducted to evaluate the efficacy of three spray regimes of Cypermethrin on the density of M. vitrata, A. varium and R. dentipes and the performance of yield components of cowpea. Trials were conducted at three different sites, one controlled (INERA) and two peasant sites (Mpiana and Yamba). Three genetically improved varieties called Mujilanga, CNGKASC2-1-1-T, and CNGKASA7-2-M of cowpea were used. The tests were conducted using a split-plot device with three repetitions. Results demonstrate that Cypermethrin is effective against insect pests of cowpea, the population of all target pest were found to decrease in the plot treated to the untreated plot. Application of insecticide three times recorded the highest increased grain yield between 93 and 169 %. The average yield for spray regime recorded 689.1 kg, 651.8 kg and 553.3 kg for D1, D2 and D3 sprays. Famers can use two or three spray regimes of Cypermethrin to manage the pest, this option may reduce the cost, in order to achieve a sustainable level of agricultural and a high level of environmental and human health protection in cowpea field in DR Congo.
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Claims 6
Claim · model-written summary
Cypermethrin reduced the population of target pests of cowpea relative to untreated plots.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- Cypermethrine1
- Interactor
- Maruca vitrata
Maruca vitratae0pest - Second interactor
- Riptortus dentipese0pest
- Outcome
- population of all target peste1
- Direction
- decreasee1
- Comparator
- untreated plote1
- Setting
- Lomami Provincet1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pod borers (Maruca vitrata), pod-sucking bug (PSB) complex of which Riptortus dentipes and Apium varium”
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea, the population of all target pest were found to decrease in the plot treated to the untreated plot”
t1“Lomami Province, DR Congo”
Claim · model-written summary
Applying insecticide three times increased cowpea grain yield by between 93 and 169%.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Application of insecticide three timese2
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- between 93 and 169 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea”
e2“Application of insecticide three times recorded the highest increased grain yield between 93 and 169 %”
Claim · model-written summary
Spray regime D1 gave an average cowpea yield of 689.1 kg.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- D1e3
- Outcome
- average yielde3
- Value
- 689.1 kge3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea”
e3“The average yield for spray regime recorded 689.1 kg, 651.8 kg and 553.3 kg for D1, D2 and D3 sprays”
Claim · model-written summary
Spray regime D2 gave an average cowpea yield of 651.8 kg.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- D2e3
- Outcome
- average yielde3
- Value
- 651.8 kge3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea”
e3“The average yield for spray regime recorded 689.1 kg, 651.8 kg and 553.3 kg for D1, D2 and D3 sprays”
Claim · model-written summary
Spray regime D3 gave an average cowpea yield of 553.3 kg.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- D3e3
- Outcome
- average yielde3
- Value
- 553.3 kge3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea”
e3“The average yield for spray regime recorded 689.1 kg, 651.8 kg and 553.3 kg for D1, D2 and D3 sprays”
Claim · model-written summary
Farmers can use two or three spray regimes of Cypermethrin to manage cowpea pests and may reduce cost.
- Taxon
- cowpeaVigna unguiculatae1
- Outcome
- two or three spray regimes of Cypermethrine4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results demonstrate that Cypermethrin is effective against insect pests of cowpea”
e4“Famers can use two or three spray regimes of Cypermethrin to manage the pest, this option may reduce the cost”
The same questions in other papers
cypermethrin · Maruca vitrata · Vigna unguiculata (cowpea)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
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See all 6 papers →insecticide · yield · Vigna unguiculata (cowpea)Positive and negative results
23 papers in the same direction as this paper · 4 in the opposite direction
- positive
- negative
- no effect
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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.