Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin
This study was carried out 7 years after a first one conducted in 2013 as part of the policy of the Benin government to promote the vegetable production sector. Data collection was mostly based on a countrywide survey conducted in 25 municipalities throughout Benin, from August to December 2020. Far...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
|
| Series: | Journal of Agriculture and Food Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266615432200134X |
| _version_ | 1828090261268332544 |
|---|---|
| author | Ginette Yèyinou Azandeme-Hounmalon Rachidatou Sikirou Alexis Onzo Komi K. Mokpokpo Fiaboe Manuele Tamo Serge Kreiter Thibaud Martin |
| author_facet | Ginette Yèyinou Azandeme-Hounmalon Rachidatou Sikirou Alexis Onzo Komi K. Mokpokpo Fiaboe Manuele Tamo Serge Kreiter Thibaud Martin |
| author_sort | Ginette Yèyinou Azandeme-Hounmalon |
| collection | DOAJ |
| description | This study was carried out 7 years after a first one conducted in 2013 as part of the policy of the Benin government to promote the vegetable production sector. Data collection was mostly based on a countrywide survey conducted in 25 municipalities throughout Benin, from August to December 2020. Farmers were selected based on their experience in cultivating solanaceous crops, and were interviewed to assess their perception about the severity of the spider mite Tetranychus evansi, the control method they used against this pest, and their knowledge about potential predators associated with the mites. Additionally, predatory mites associated with T. evansi in farmer fields were identified. All farmers recognized T. evansi to which they attributed local names depending on their ethnic group. They were also able to identify its damages on solanaceous crops. They indicated that outbreaks of T. evansi occurs at the end of the rainy season while their damages are more severe during the dry season. Production losses due to the mites were estimated by farmers to 27%, 24% and 22% respectively for tomato, African eggplant, pepper in the moderate damage case and 80%, 79%, 55% respectively for tomato, African eggplant and pepper in the severe damage conditions. To fight the mites, farmers generally apply heavy doses of chemical pesticides at high frequency. Pyrethroid and organophosphate compounds are the most frequently used pesticides. The only phytophagous mite recorded was T. evansi. A total of four species of predatory mites, all belonging to the phytoseiid family, were found associated with the pest on Solanaceous plants: Amblyseius swirskii, A. tamatavensis, Neoseiulus barkeri and N. longispinosus. This is the first report of the presence of N. longispinosus in Benin. Considering the high losses attributed to the pest, effective and sustainable management practices are necessary. |
| first_indexed | 2024-04-11T05:54:02Z |
| format | Article |
| id | doaj.art-34f323325cb844f39fa3aa898024d8ea |
| institution | Directory Open Access Journal |
| issn | 2666-1543 |
| language | English |
| last_indexed | 2024-04-11T05:54:02Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Agriculture and Food Research |
| spelling | doaj.art-34f323325cb844f39fa3aa898024d8ea2022-12-22T04:41:58ZengElsevierJournal of Agriculture and Food Research2666-15432022-12-0110100401Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in BeninGinette Yèyinou Azandeme-Hounmalon0Rachidatou Sikirou1Alexis Onzo2Komi K. Mokpokpo Fiaboe3Manuele Tamo4Serge Kreiter5Thibaud Martin6Université Nationale d’Agriculture (UNA), BP 43, Kétou, Benin; Corresponding author.Institut National des Recherches Agricoles du Bénin, Laboratoire de Défense des Cultures, 01BP 884, Cotonou, BeninUniversité de Parakou, Faculté d’Agronomie, BP 123, Parakou, BeninInternational Institute of Tropical Agriculture (IITA) Messa, 2008, Yaoundé, CameroonInternational Institute of Tropical Agriculture (IITA), BP 08-0932, Cotonou, BeninInstitut Agro (Montpellier SupAgro), UMR CBGP INRAE/IRD/CIRAD/IA (SupAgro), Univ. Montpellier, 755 Avenue du Campus Agropolis (Baillarguet), CS 30016, 34988, Montferrier-sur-Lez cedex, FranceCirad UPR Hortsys, Montpellier University, Avenue Agropolis, 34398, Montpellier, FranceThis study was carried out 7 years after a first one conducted in 2013 as part of the policy of the Benin government to promote the vegetable production sector. Data collection was mostly based on a countrywide survey conducted in 25 municipalities throughout Benin, from August to December 2020. Farmers were selected based on their experience in cultivating solanaceous crops, and were interviewed to assess their perception about the severity of the spider mite Tetranychus evansi, the control method they used against this pest, and their knowledge about potential predators associated with the mites. Additionally, predatory mites associated with T. evansi in farmer fields were identified. All farmers recognized T. evansi to which they attributed local names depending on their ethnic group. They were also able to identify its damages on solanaceous crops. They indicated that outbreaks of T. evansi occurs at the end of the rainy season while their damages are more severe during the dry season. Production losses due to the mites were estimated by farmers to 27%, 24% and 22% respectively for tomato, African eggplant, pepper in the moderate damage case and 80%, 79%, 55% respectively for tomato, African eggplant and pepper in the severe damage conditions. To fight the mites, farmers generally apply heavy doses of chemical pesticides at high frequency. Pyrethroid and organophosphate compounds are the most frequently used pesticides. The only phytophagous mite recorded was T. evansi. A total of four species of predatory mites, all belonging to the phytoseiid family, were found associated with the pest on Solanaceous plants: Amblyseius swirskii, A. tamatavensis, Neoseiulus barkeri and N. longispinosus. This is the first report of the presence of N. longispinosus in Benin. Considering the high losses attributed to the pest, effective and sustainable management practices are necessary.http://www.sciencedirect.com/science/article/pii/S266615432200134XSolanaceous cropsTetranychidsPredatory mitesChemical pesticideBenin |
| spellingShingle | Ginette Yèyinou Azandeme-Hounmalon Rachidatou Sikirou Alexis Onzo Komi K. Mokpokpo Fiaboe Manuele Tamo Serge Kreiter Thibaud Martin Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin Journal of Agriculture and Food Research Solanaceous crops Tetranychids Predatory mites Chemical pesticide Benin |
| title | Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin |
| title_full | Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin |
| title_fullStr | Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin |
| title_full_unstemmed | Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin |
| title_short | Re-assessing the pest status of Tetranychus evansi (Acari: Tetranychidae) on solanaceous crops and farmers control practices in Benin |
| title_sort | re assessing the pest status of tetranychus evansi acari tetranychidae on solanaceous crops and farmers control practices in benin |
| topic | Solanaceous crops Tetranychids Predatory mites Chemical pesticide Benin |
| url | http://www.sciencedirect.com/science/article/pii/S266615432200134X |
| work_keys_str_mv | AT ginetteyeyinouazandemehounmalon reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT rachidatousikirou reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT alexisonzo reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT komikmokpokpofiaboe reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT manueletamo reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT sergekreiter reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin AT thibaudmartin reassessingthepeststatusoftetranychusevansiacaritetranychidaeonsolanaceouscropsandfarmerscontrolpracticesinbenin |