Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most devastating pests of tomato. We studied whether partially sterile T. absoluta males and fully sterile females were capable of suppressing wild populations of this moth in semi-controlled conditions. After irradiating T. absoluta p...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.12123/788 http://www.bioone.org/doi/pdf/10.1653/024.099.sp112 https://doi.org/10.1653/024.099.sp112 |
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| author | Cagnotti, Cynthia Lorena Andorno, Andrea Veronica Hernández, Carmen Marcela Carabajal Paladino, Leonale Suzel Botto, Eduardo Norberto López, Silvia Noemi |
| author_browse | Andorno, Andrea Veronica Botto, Eduardo Norberto Cagnotti, Cynthia Lorena Carabajal Paladino, Leonale Suzel Hernández, Carmen Marcela López, Silvia Noemi |
| author_facet | Cagnotti, Cynthia Lorena Andorno, Andrea Veronica Hernández, Carmen Marcela Carabajal Paladino, Leonale Suzel Botto, Eduardo Norberto López, Silvia Noemi |
| author_sort | Cagnotti, Cynthia Lorena |
| collection | INTA Digital |
| description | Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most devastating pests of tomato. We studied whether partially sterile T. absoluta males and fully sterile females were capable of suppressing wild populations of this moth in semi-controlled conditions. After irradiating T. absoluta pupae with 200 Gy, emerged males and females were released at 10:1 (treated:untreated) and 15:1 over-flooding ratios inside field cages containing
tomato plants. The number of eggs and larvae produced was recorded once per wk during 3 mo. An over-flooding ratio of 10:1 caused a decline in larvae production compared with the untreated control cages, but these differences were not statistically significant. Using an over-flooding ratio of 15:1, the moth population in the cages with irradiated insects decreased significantly compared with those in the untreated control cages. In addition,
the possibility of combining inherited sterility and a natural enemy as a strategy to manage this pest was investigated. We studied in no choice and
choice tests the predation behavior of females of the egg predator Tupiocoris cucurbitaceus (Hemiptera: Miridae) on eggs derived from the following
parental T. absoluta crosses: U × U (control), U × I and I × U (where U = untreated, I = irradiated). In the no choice test, females of the T.
cucurbitaceus readily consumed T. absoluta eggs regardless of their origin. In the choice test, T. cucurbitaceus females consumed similar numbers of
eggs of untreated parents and eggs oviposited from crosses in which the male had been irradiated. However, the mirid females preyed on significantly
more eggs—roughly 20% more—from irradiated females than on eggs from untreated females. We conclude that it is possible to achieve a certain
level of suppression of a T. absoluta wild population through the release of irradiated insects, and that it is technically feasible to combine the use of
the predator T. cucurbitaceus with inherited sterility to control this moth pest. |
| format | Artículo |
| id | INTA788 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA7882018-01-12T18:25:04Z Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator Cagnotti, Cynthia Lorena Andorno, Andrea Veronica Hernández, Carmen Marcela Carabajal Paladino, Leonale Suzel Botto, Eduardo Norberto López, Silvia Noemi Plagas de Plantas Scrobipalpula Absoluta Liberación de Insectos Estériles Control de Plagas Control Biológico Pest of Plants Sterile Insect Release Pest Control Biological Control Tuta Absoluta Polilla del Tomate Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most devastating pests of tomato. We studied whether partially sterile T. absoluta males and fully sterile females were capable of suppressing wild populations of this moth in semi-controlled conditions. After irradiating T. absoluta pupae with 200 Gy, emerged males and females were released at 10:1 (treated:untreated) and 15:1 over-flooding ratios inside field cages containing tomato plants. The number of eggs and larvae produced was recorded once per wk during 3 mo. An over-flooding ratio of 10:1 caused a decline in larvae production compared with the untreated control cages, but these differences were not statistically significant. Using an over-flooding ratio of 15:1, the moth population in the cages with irradiated insects decreased significantly compared with those in the untreated control cages. In addition, the possibility of combining inherited sterility and a natural enemy as a strategy to manage this pest was investigated. We studied in no choice and choice tests the predation behavior of females of the egg predator Tupiocoris cucurbitaceus (Hemiptera: Miridae) on eggs derived from the following parental T. absoluta crosses: U × U (control), U × I and I × U (where U = untreated, I = irradiated). In the no choice test, females of the T. cucurbitaceus readily consumed T. absoluta eggs regardless of their origin. In the choice test, T. cucurbitaceus females consumed similar numbers of eggs of untreated parents and eggs oviposited from crosses in which the male had been irradiated. However, the mirid females preyed on significantly more eggs—roughly 20% more—from irradiated females than on eggs from untreated females. We conclude that it is possible to achieve a certain level of suppression of a T. absoluta wild population through the release of irradiated insects, and that it is technically feasible to combine the use of the predator T. cucurbitaceus with inherited sterility to control this moth pest. Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) es una de las plagas más devastadoras de los cultivos de tomate. Se estudió si machos parcialmente estériles y hembras totalmente estériles de T. absoluta son capaces de suprimir poblaciones salvajes de esta polilla en condiciones semicontroladas. Después de la irradiación de pupas de T. absoluta a 200 Gy, machos y hembras emergidos fueron liberados con una relación de 10:1 (tratados:no tratados) en el interior de jaulas que contenían plantas de tomate. El número de huevos y larvas producido fue registrado una vez a la semana durante tres meses. El experimento se repitió con una relación de 15:1. El uso de una relación de 10:1 causó una disminución de la población de larvas en comparación con las jaulas control, pero estas diferencias no fueron estadísticamente significativas. Cuando la relación fue 15:1, la población de la polilla en las jaulas con los insectos irradiados disminuyó significativamente en comparación con las jaulas control. Además, se analizó la posible compatibilidad de la esterilidad heredada y el control biológico como estrategia para el control de esta plaga. Se estudió en pruebas sin elección y con elección si los huevos provenientes de los siguientes cruzamientos parentales de T. absoluta: ♀U × ♂U (control), ♀U × ♂I y ♀I × ♂U (donde U = no irradiado, I = irradiado) son igualmente aceptados para el consumo por hembras de Tupiocoris cucurbitaceus (Hemiptera: Miridae). En la prueba sin elección, las hembras de T. cucurbitaceus consumieron un elevado número de huevos de T. absoluta, independientemente de su origen. En la prueba de elección, las hembras de T. cucurbitaceus consumieron tanto huevos provenientes de parentales no tratados como huevos de parentales con el macho irradiado. Sin embargo, las hembras del mírido predaron significativamente más huevos de hembras irradiadas que huevos de hembras no tratadas. Se concluyó que es posible alcanzar un cierto nivel de supresión de una población salvaje de T. absoluta mediante la liberación de insectos irradiados y que es factible combinar el uso del predador T. cucurbitaceus con IS para controlar esta polilla plaga. Inst. de Microbiología y Zoología Agrícola IMyZA Fil: Cagnotti, Cynthia Lorena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Insectario de Investigaciones para Lucha Biológica; Argentina Fil: Andorno, Andrea Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Insectario de Investigaciones para Lucha Biológica; Argentina Fil: Hernández, Carmen Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Insectario de Investigaciones para Lucha Biológica; Argentina Fil: Carabajal Paladino, Leonale Suzel. Biology Centre CAS. Institute of Entomology; República Checa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Botto, Eduardo Norberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Insectario de Investigaciones para Lucha Biológica; Argentina Fil: López, Silvia Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Insectario de Investigaciones para Lucha Biológica; Argentina 2017-07-26T16:53:59Z 2017-07-26T16:53:59Z 2016 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/788 http://www.bioone.org/doi/pdf/10.1653/024.099.sp112 1938-5102 https://doi.org/10.1653/024.099.sp112 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Florida Entomologist 99 (sp1) : 87-94 |
| spellingShingle | Plagas de Plantas Scrobipalpula Absoluta Liberación de Insectos Estériles Control de Plagas Control Biológico Pest of Plants Sterile Insect Release Pest Control Biological Control Tuta Absoluta Polilla del Tomate Cagnotti, Cynthia Lorena Andorno, Andrea Veronica Hernández, Carmen Marcela Carabajal Paladino, Leonale Suzel Botto, Eduardo Norberto López, Silvia Noemi Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title | Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title_full | Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title_fullStr | Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title_full_unstemmed | Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title_short | Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator |
| title_sort | inherited sterility in tuta absoluta lepidoptera gelechiidae pest population suppression and potential for combined use with a generalist predator |
| topic | Plagas de Plantas Scrobipalpula Absoluta Liberación de Insectos Estériles Control de Plagas Control Biológico Pest of Plants Sterile Insect Release Pest Control Biological Control Tuta Absoluta Polilla del Tomate |
| url | http://hdl.handle.net/20.500.12123/788 http://www.bioone.org/doi/pdf/10.1653/024.099.sp112 https://doi.org/10.1653/024.099.sp112 |
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