Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa
In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Gnankiné, Olivier [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2018transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens - Kala, Smriti ELSEVIER, 2018, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:104 ; year:2018 ; pages:86-91 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.cropro.2017.10.020 |
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| 245 | 1 | 0 | |a Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa |
| 264 | 1 | |c 2018transfer abstract | |
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| 520 | |a In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. | ||
| 520 | |a In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. | ||
| 650 | 7 | |a kdr |2 Elsevier | |
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| 650 | 7 | |a Pest management programs |2 Elsevier | |
| 650 | 7 | |a Insecticides |2 Elsevier | |
| 650 | 7 | |a Bemisia tabaci |2 Elsevier | |
| 700 | 1 | |a Hema, Omer |4 oth | |
| 700 | 1 | |a Namountougou, Moussa |4 oth | |
| 700 | 1 | |a Mouton, Laurence |4 oth | |
| 700 | 1 | |a Vavre, Fabrice |4 oth | |
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10.1016/j.cropro.2017.10.020 doi GBV00000000000060A.pica (DE-627)ELV041119908 (ELSEVIER)S0261-2194(17)30317-4 DE-627 ger DE-627 rakwb eng 630 580 630 DE-600 580 DE-600 610 VZ PHARM DE-84 fid 15,3 ssgn 44.43 bkl Gnankiné, Olivier verfasserin aut Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. kdr Elsevier Ace1 R Elsevier Pest management programs Elsevier Insecticides Elsevier Bemisia tabaci Elsevier Hema, Omer oth Namountougou, Moussa oth Mouton, Laurence oth Vavre, Fabrice oth Enthalten in Elsevier Kala, Smriti ELSEVIER Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens 2018 Amsterdam [u.a.] (DE-627)ELV000917710 volume:104 year:2018 pages:86-91 extent:6 https://doi.org/10.1016/j.cropro.2017.10.020 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.43 Medizinische Mikrobiologie VZ AR 104 2018 86-91 6 045F 630 |
| spelling |
10.1016/j.cropro.2017.10.020 doi GBV00000000000060A.pica (DE-627)ELV041119908 (ELSEVIER)S0261-2194(17)30317-4 DE-627 ger DE-627 rakwb eng 630 580 630 DE-600 580 DE-600 610 VZ PHARM DE-84 fid 15,3 ssgn 44.43 bkl Gnankiné, Olivier verfasserin aut Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. kdr Elsevier Ace1 R Elsevier Pest management programs Elsevier Insecticides Elsevier Bemisia tabaci Elsevier Hema, Omer oth Namountougou, Moussa oth Mouton, Laurence oth Vavre, Fabrice oth Enthalten in Elsevier Kala, Smriti ELSEVIER Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens 2018 Amsterdam [u.a.] (DE-627)ELV000917710 volume:104 year:2018 pages:86-91 extent:6 https://doi.org/10.1016/j.cropro.2017.10.020 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.43 Medizinische Mikrobiologie VZ AR 104 2018 86-91 6 045F 630 |
| allfields_unstemmed |
10.1016/j.cropro.2017.10.020 doi GBV00000000000060A.pica (DE-627)ELV041119908 (ELSEVIER)S0261-2194(17)30317-4 DE-627 ger DE-627 rakwb eng 630 580 630 DE-600 580 DE-600 610 VZ PHARM DE-84 fid 15,3 ssgn 44.43 bkl Gnankiné, Olivier verfasserin aut Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. kdr Elsevier Ace1 R Elsevier Pest management programs Elsevier Insecticides Elsevier Bemisia tabaci Elsevier Hema, Omer oth Namountougou, Moussa oth Mouton, Laurence oth Vavre, Fabrice oth Enthalten in Elsevier Kala, Smriti ELSEVIER Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens 2018 Amsterdam [u.a.] (DE-627)ELV000917710 volume:104 year:2018 pages:86-91 extent:6 https://doi.org/10.1016/j.cropro.2017.10.020 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.43 Medizinische Mikrobiologie VZ AR 104 2018 86-91 6 045F 630 |
| allfieldsGer |
10.1016/j.cropro.2017.10.020 doi GBV00000000000060A.pica (DE-627)ELV041119908 (ELSEVIER)S0261-2194(17)30317-4 DE-627 ger DE-627 rakwb eng 630 580 630 DE-600 580 DE-600 610 VZ PHARM DE-84 fid 15,3 ssgn 44.43 bkl Gnankiné, Olivier verfasserin aut Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. kdr Elsevier Ace1 R Elsevier Pest management programs Elsevier Insecticides Elsevier Bemisia tabaci Elsevier Hema, Omer oth Namountougou, Moussa oth Mouton, Laurence oth Vavre, Fabrice oth Enthalten in Elsevier Kala, Smriti ELSEVIER Improving the clinical relevance of a mouse pregnancy model of antiretroviral toxicity; a pharmacokinetic dosing-optimization study of current HIV antiretroviral regimens 2018 Amsterdam [u.a.] (DE-627)ELV000917710 volume:104 year:2018 pages:86-91 extent:6 https://doi.org/10.1016/j.cropro.2017.10.020 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-PHARM SSG-OLC-PHA SSG-OPC-PHA 44.43 Medizinische Mikrobiologie VZ AR 104 2018 86-91 6 045F 630 |
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Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa |
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In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. |
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In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. |
| abstract_unstemmed |
In West Africa, the use of organophospates and pyrethroid insecticides to control cotton pests has led to the evolution of resistance in field populations of Bemisia tabaci Gennadius. Three pest management programs have been commonly recommended: the Conventional Program (CP) where 6 treatments are applied, the use of Bt cotton plants for which only 2 applications of neonicotinoids are required and that has been adopted in many countries, and a biological program (BP) without any chemical treatment. The present study aimed to determine the influence of these practices on the frequency of mutations that confer resistance to pyrethroids (mutation L925I in the para-type voltage-gated sodium channel gene) and organophosphates (mutation F331W in the acetylcholinesterase enzyme ace1: allele Ace1 R ) in B. tabaci populations using Bt cotton and CP areas in Pô and Saria (Burkina Faso), CP and BP areas in Kandi (Benin) and only CP areas in Tové and Infa (Togo). All individuals sampled belonged to the MED (biotypes MED-Q1) and Africa Silver Leafing (ASL) species. MED-Q1 was found in sympatry with ASL in Burkina Faso both on CP and Bt cotton areas at variable frequencies. In Togo and Benin, only ASL was found, except in Tové where MED-Q1 was also detected, but at low frequency. Frequencies of mutations that confer resistance varied between localities and species but we did not find any strong evidence of a relationship between the pest management program and these frequencies except for the allele Ace1 R in Burkina Faso for which the frequencies decrease when chemical applications are reduced. This study provides valuable information for the development of efficient integrated pest management programs. |
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| title_short |
Impact of pest management practices on the frequency of insecticide resistance alleles in Bemisia tabaci (Hemiptera: Aleyrodidae) populations in three countries of West Africa |
| url |
https://doi.org/10.1016/j.cropro.2017.10.020 |
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Hema, Omer Namountougou, Moussa Mouton, Laurence Vavre, Fabrice |
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| doi_str |
10.1016/j.cropro.2017.10.020 |
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2024-07-06T19:16:48.885Z |
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