Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions.
Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) is one of the main limiting factors disturbing tomato (Solanum lycopersicum) crop, due to its direct and indirect effects in the fruit’s production system. This pest management has been focused on excessive chemical products, mostly without...
| Main Authors: | , |
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2016
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/5553 |
| _version_ | 1801706469701189632 |
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| author | Castro-Lopez, Mayerly Alejandra Martinez-Osorio, John Wilson |
| author_facet | Castro-Lopez, Mayerly Alejandra Martinez-Osorio, John Wilson |
| author_sort | Castro-Lopez, Mayerly Alejandra |
| collection | OJS |
| description | Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) is one of the main limiting factors disturbing tomato (Solanum lycopersicum) crop, due to its direct and indirect effects in the fruit’s production system. This pest management has been focused on excessive chemical products, mostly without good results. This study aim was to evaluate under glasshouse conditions, the regulatory capacity of Chrysoperla externa Hagen (Neuroptera: Chrysopidae) against white fly in tomato. In tomato plants infested with T. vaporariorum, individuals of Chrysoperla externa were added at different levels, which consisted in 80, 160 and 240 individuals in larval stage per plant; also a control without the predator was used. To asses the experiment, a complete randomized design was used under glasshouse conditions (mean temperature of20 °C and relative humidity of 60 %). Significant statistical differences were observed between the predator densities with 35, 52 and 53 infestation percentages of T. vaporariorum (after 4 weeks), corresponding to the liberation of 240, 160 and 80 individuals per plant, respectively. Regarding with tomato, it was obsewed a lower plant height increase, plus smaller branches and less number per plant with the control, than the treatments with C. externa predator presence. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-5553 |
| institution | Revista Ciencia y Agricultura |
| language | spa |
| publishDate | 2016 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-55532022-06-16T15:24:46Z Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. Capacidad reguladora de Chrysoperla externa (Hagen) sobre mosca blanca Trialeurodes vaporariorum (Westwood) en tomate bajo invernadero Castro-Lopez, Mayerly Alejandra Martinez-Osorio, John Wilson biological control chrysopidae entomophagous neuropteran lacewings chrysopidae control biológico crisopas entomófago neuróptera Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) is one of the main limiting factors disturbing tomato (Solanum lycopersicum) crop, due to its direct and indirect effects in the fruit’s production system. This pest management has been focused on excessive chemical products, mostly without good results. This study aim was to evaluate under glasshouse conditions, the regulatory capacity of Chrysoperla externa Hagen (Neuroptera: Chrysopidae) against white fly in tomato. In tomato plants infested with T. vaporariorum, individuals of Chrysoperla externa were added at different levels, which consisted in 80, 160 and 240 individuals in larval stage per plant; also a control without the predator was used. To asses the experiment, a complete randomized design was used under glasshouse conditions (mean temperature of20 °C and relative humidity of 60 %). Significant statistical differences were observed between the predator densities with 35, 52 and 53 infestation percentages of T. vaporariorum (after 4 weeks), corresponding to the liberation of 240, 160 and 80 individuals per plant, respectively. Regarding with tomato, it was obsewed a lower plant height increase, plus smaller branches and less number per plant with the control, than the treatments with C. externa predator presence. Trialeurodes vaporariorum Westwood (Hemíptera: Aleyrodidae) es uno de los principales limitantes del cultivo de tomate Solanum lycopersicum, por generar problemas directos e indirectos en este sistema de producción; para el manejo de este insecto (mosca blanca) se acude a excesivas aplicaciones de productos de síntesis química, sin obtener los mejores resultados. Este estudio consistió en evaluar, en condiciones de invernadero, la capacidad reguladora de Chrysoperla externa Hagen (Neuróptera: Chrysopidae) sobre la mosca blanca presente en tomate. En plantas infestadas con individuos de T. vaporariorum se adicionó C. externa en niveles poblacionales de 80, 160 y 240 individuos en estado larval por planta, y se contó con un testigo sin depredador. Se empleó un diseño completamente al azar en condiciones de invernadero (temperatura promedio de 20 ºC y humedad relativa del 60 %). Se observaron diferencias estadísticamente significativas entre las densidades del depredador, con infestaciones de 35, 52 y 53 % de T. vaporariorum (tras cuatro semanas), correspondientes a las liberaciones de 240, 160 y 80 individuos por planta, respectivamente. Se observó que las plantas del testigo presentaron menor altura y número de ramas, respecto de los tratamientos en los cuales había presencia del depredador C. externa. Universidad Pedagógica y Tecnológica de Colombia 2016-11-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion investigation investigación application/pdf https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/5553 10.19053/01228420.v13.n2.2016.5553 Ciencia y Agricultura; Vol. 13 No. 2 (2016); 57-66 Ciencia y Agricultura; Vol. 13 Núm. 2 (2016); 57-66 2539-0899 spa https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/5553/4585 Copyright (c) 2016 Revista Ciencia y Agricultura |
| spellingShingle | biological control chrysopidae entomophagous neuropteran lacewings chrysopidae control biológico crisopas entomófago neuróptera Castro-Lopez, Mayerly Alejandra Martinez-Osorio, John Wilson Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title | Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title_alt | Capacidad reguladora de Chrysoperla externa (Hagen) sobre mosca blanca Trialeurodes vaporariorum (Westwood) en tomate bajo invernadero |
| title_full | Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title_fullStr | Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title_full_unstemmed | Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title_short | Chrysoperla externa (Hagen) regulatory capacity against whtefly Trialeurodes vaporariorum (Westwood) in tomato under glasshouse conditions. |
| title_sort | chrysoperla externa hagen regulatory capacity against whtefly trialeurodes vaporariorum westwood in tomato under glasshouse conditions |
| topic | biological control chrysopidae entomophagous neuropteran lacewings chrysopidae control biológico crisopas entomófago neuróptera |
| topic_facet | biological control chrysopidae entomophagous neuropteran lacewings chrysopidae control biológico crisopas entomófago neuróptera |
| url | https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/5553 |
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