Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification
Since 2010, red rust thrips (RRT) have become a serious pest in organic export banana plantations, causing yield losses of 30-40%. Although RRT blemishes on banana peel are only cosmetic, exporters apply zero tolerance. During 2014-2017, FONTAGRO co-financed studies on measures to reduce RRT damage...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Objeto de conferencia |
| Language: | Inglés |
| Published: |
ISHS
2025
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12955/2741 https://doi.org/10.17660/actahortic.2020.1272.19 |
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| author | Arias de López, M. Corozo Ayovi, R.E. Delgado, R. Osorio, B. Moyón, D. Rengifo, D. Suárez, P. Paulino, A. Medrano, S. Sanchez, L. Rojas Llanque, Juan Carlos Vegas, U. Alburqueque, D. Staver, C. van Tol, R. Clercx, L. |
| author_browse | Alburqueque, D. Arias de López, M. Clercx, L. Corozo Ayovi, R.E. Delgado, R. Medrano, S. Moyón, D. Osorio, B. Paulino, A. Rengifo, D. Rojas Llanque, Juan Carlos Sanchez, L. Staver, C. Suárez, P. Vegas, U. van Tol, R. |
| author_facet | Arias de López, M. Corozo Ayovi, R.E. Delgado, R. Osorio, B. Moyón, D. Rengifo, D. Suárez, P. Paulino, A. Medrano, S. Sanchez, L. Rojas Llanque, Juan Carlos Vegas, U. Alburqueque, D. Staver, C. van Tol, R. Clercx, L. |
| author_sort | Arias de López, M. |
| collection | Repositorio INIA |
| description | Since 2010, red rust thrips (RRT) have become a serious pest in organic export banana plantations, causing yield losses of 30-40%. Although RRT blemishes on banana peel are only cosmetic, exporters apply zero tolerance. During 2014-2017, FONTAGRO co-financed studies on measures to reduce RRT damage in smallholder organic export banana. Research was initially guided by an IPM approach based on thrips population thresholds and linked abiotic factors, in order to schedule practices. Initial studies resulted in a preventive model for thrips management based on the yearround use of transparent bags with 3-mm orifices to protect bunches just as the bell emerges and before bracts open. This approach minimizes losses due to both Chaetanaphothrips signipennis found in Peru and Ecuador and Chaetanaphothrips orchidii common in the Dominican Republic. Experiments to develop scouting methods and establish thresholds suggested three conclusions: C. signipennnis flies very little, complicating trapping even with pheromones; thresholds for economic damage are very low; and scouting is difficult, costly and not practical for decision making. Routine monitoring of losses caused by RRT and other factors should be done during packing. Experiments to test the effectiveness of bagging and the use of applied products to repel or kill thrips showed that bagging alone reduced losses by 90-100% compared to bunches with no bag. Applications of organic products to the bell at bagging and the leaf whorl and the upper bunch stem simultaneously with other bunch practices reduced losses further by 0-8%. Studies of biological control identified predators, parasitoids and entomopathogens which attack different stages of thrips. Preliminary lab and release studies suggest that biological control should be further developed. However, RRT form part of a complex of insect bunch pests, and the use of general or targeted applications should be reviewed to avoid the use of products which reduce beneficial organisms. |
| format | Objeto de conferencia |
| id | INIA2741 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | ISHS |
| publisherStr | ISHS |
| record_format | dspace |
| spelling | INIA27412025-05-16T17:22:26Z Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification Arias de López, M. Corozo Ayovi, R.E. Delgado, R. Osorio, B. Moyón, D. Rengifo, D. Suárez, P. Paulino, A. Medrano, S. Sanchez, L. Rojas Llanque, Juan Carlos Vegas, U. Alburqueque, D. Staver, C. van Tol, R. Clercx, L. organic banana biological control of thrips bio-insecticides https://purl.org/pe-repo/ocde/ford#4.04.00 Banana orgánica; Control biológico; Trips; Bioinsecticidas Since 2010, red rust thrips (RRT) have become a serious pest in organic export banana plantations, causing yield losses of 30-40%. Although RRT blemishes on banana peel are only cosmetic, exporters apply zero tolerance. During 2014-2017, FONTAGRO co-financed studies on measures to reduce RRT damage in smallholder organic export banana. Research was initially guided by an IPM approach based on thrips population thresholds and linked abiotic factors, in order to schedule practices. Initial studies resulted in a preventive model for thrips management based on the yearround use of transparent bags with 3-mm orifices to protect bunches just as the bell emerges and before bracts open. This approach minimizes losses due to both Chaetanaphothrips signipennis found in Peru and Ecuador and Chaetanaphothrips orchidii common in the Dominican Republic. Experiments to develop scouting methods and establish thresholds suggested three conclusions: C. signipennnis flies very little, complicating trapping even with pheromones; thresholds for economic damage are very low; and scouting is difficult, costly and not practical for decision making. Routine monitoring of losses caused by RRT and other factors should be done during packing. Experiments to test the effectiveness of bagging and the use of applied products to repel or kill thrips showed that bagging alone reduced losses by 90-100% compared to bunches with no bag. Applications of organic products to the bell at bagging and the leaf whorl and the upper bunch stem simultaneously with other bunch practices reduced losses further by 0-8%. Studies of biological control identified predators, parasitoids and entomopathogens which attack different stages of thrips. Preliminary lab and release studies suggest that biological control should be further developed. However, RRT form part of a complex of insect bunch pests, and the use of general or targeted applications should be reviewed to avoid the use of products which reduce beneficial organisms. In addition to the financing from FONTAGRO, financing was provided by INIAP-Ecuador, INIA-Peru, IDIAF-Dominican Republic, TASTE/Agrofair and WUR-Netherlands, Bioversity International and the Consortium Research Program for Roots, Tubers and Bananas. 2025-05-16T17:22:26Z 2025-05-16T17:22:26Z 2020-03-23 info:eu-repo/semantics/conferenceObject Arias de López, M., Corozo-Ayovi, R.E., Delgado, R., Osorio, B., Moyón, D., Rengifo, D., ... & Clercx, L. (2020). Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification. Acta Horticulturae, (1272), 153 161. https://doi.org/10.17660/ActaHortic.2020.1272.19 2406-6168 http://hdl.handle.net/20.500.12955/2741 https://doi.org/10.17660/actahortic.2020.1272.19 eng urn:issn:2406-6168 Acta Horticulturae info:eu-repo/semantics/restrictedAccess application/pdf ISHS BE Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | organic banana biological control of thrips bio-insecticides https://purl.org/pe-repo/ocde/ford#4.04.00 Banana orgánica; Control biológico; Trips; Bioinsecticidas Arias de López, M. Corozo Ayovi, R.E. Delgado, R. Osorio, B. Moyón, D. Rengifo, D. Suárez, P. Paulino, A. Medrano, S. Sanchez, L. Rojas Llanque, Juan Carlos Vegas, U. Alburqueque, D. Staver, C. van Tol, R. Clercx, L. Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title | Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title_full | Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title_fullStr | Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title_full_unstemmed | Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title_short | Red rust thrips in smallholder organic export banana in Latin America and the Caribbean: pathways for control, compatible with organic certification |
| title_sort | red rust thrips in smallholder organic export banana in latin america and the caribbean pathways for control compatible with organic certification |
| topic | organic banana biological control of thrips bio-insecticides https://purl.org/pe-repo/ocde/ford#4.04.00 Banana orgánica; Control biológico; Trips; Bioinsecticidas |
| url | http://hdl.handle.net/20.500.12955/2741 https://doi.org/10.17660/actahortic.2020.1272.19 |
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