Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina)
The aim of this research was to evaluate the degree of invasion of the aquatic weed Pistia stratiotes L. (Araceae) in urban lakes of Resistencia (Chaco), analyzing the ecological characteristics of these environments and the feasibility of implementing biological control of aquatic weeds with insect...
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| Formato: | Artículo revista |
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Facultad de Ciencias Exactas y Naturales y Agrimensura
2025
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/fce/article/view/7738 |
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I48-R154-article-7738 |
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| record_format |
ojs |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| topic |
Control biológico aumentativo Gorgojos acu´aticos Humedales subtropicales Pistia stratiotes Plantas invasoras Augmentative biological control Aquatic weevils Invasive plants Pistia stratiotes Subtropical wetlands |
| spellingShingle |
Control biológico aumentativo Gorgojos acu´aticos Humedales subtropicales Pistia stratiotes Plantas invasoras Augmentative biological control Aquatic weevils Invasive plants Pistia stratiotes Subtropical wetlands Bertucci, Sabrina Eliana Sabater, Lara Milena Forastier, Marina Gervazoni, Paula Belen Sosa, Alejandro Franceschini, Celeste Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| topic_facet |
Control biológico aumentativo Gorgojos acu´aticos Humedales subtropicales Pistia stratiotes Plantas invasoras Augmentative biological control Aquatic weevils Invasive plants Pistia stratiotes Subtropical wetlands |
| author |
Bertucci, Sabrina Eliana Sabater, Lara Milena Forastier, Marina Gervazoni, Paula Belen Sosa, Alejandro Franceschini, Celeste |
| author_facet |
Bertucci, Sabrina Eliana Sabater, Lara Milena Forastier, Marina Gervazoni, Paula Belen Sosa, Alejandro Franceschini, Celeste |
| author_sort |
Bertucci, Sabrina Eliana |
| title |
Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| title_short |
Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| title_full |
Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| title_fullStr |
Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| title_full_unstemmed |
Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) |
| title_sort |
biocontrol insects: are the solution to control aquatic weeds in urban wetlands? baseline studies in resistencia, chaco (argentina) |
| description |
The aim of this research was to evaluate the degree of invasion of the aquatic weed Pistia stratiotes L. (Araceae) in urban lakes of Resistencia (Chaco), analyzing the ecological characteristics of these environments and the feasibility of implementing biological control of aquatic weeds with insects. This study was carried out in Argüello and Francia lakes, both invaded by P. stratiotes. Sampling was conducted during June and July 2022 and included sampling of the weed, insects, bioindicator macroinvertebrates and cyanobacteria and water quality. The results show that water lettuce plants were more vigorous in Argüello lake but had a higher reproductive rate in Francia Lake. Two phytophagous insects associated with this weed were found: the weevil Neohydronomus affinis Hustache (Coleoptera: Curculionidae) and the leafhopper Lepidelphax pistiae Remes Lenicov (Hemiptera: Delphacidae), both potential candidates for use in augmentative biological control. The abundance of Curculionidae was 10.61 individuals/m² in Argüello Lake, while in Francia Lake 106.07 individuals/m² were recorded. L. pistiae was only found in Argüello Lake and its abundance reached 74.25 individuals/m². Although the two lakes are eutrophicated environments, the physicochemical and biological variables showed contrasting water quality conditions between them, mainly in terms of nutrient content. It is evident that mechanical control is not sustainable in these environments and therefore the application of augmentative biological control with mass rearing and release of biocontrol insects is recommended. These actions should be complemented simultaneously with treatments and public policies that tend to reduce nutrient inputs into the water. |
| publisher |
Facultad de Ciencias Exactas y Naturales y Agrimensura |
| publishDate |
2025 |
| url |
https://revistas.unne.edu.ar/index.php/fce/article/view/7738 |
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I48-R154-article-77382025-08-22T12:56:01Z Biocontrol insects: Are the solution to control aquatic weeds in urban wetlands? Baseline studies in Resistencia, Chaco (Argentina) Insectos biocontroladores: ¿solución para controlar malezas acuáticas en lagunas urbanas? Estudio de línea de base en Resistencia, Chaco (Argentina) Bertucci, Sabrina Eliana Sabater, Lara Milena Forastier, Marina Gervazoni, Paula Belen Sosa, Alejandro Franceschini, Celeste Control biológico aumentativo Gorgojos acu´aticos Humedales subtropicales Pistia stratiotes Plantas invasoras Augmentative biological control Aquatic weevils Invasive plants Pistia stratiotes Subtropical wetlands The aim of this research was to evaluate the degree of invasion of the aquatic weed Pistia stratiotes L. (Araceae) in urban lakes of Resistencia (Chaco), analyzing the ecological characteristics of these environments and the feasibility of implementing biological control of aquatic weeds with insects. This study was carried out in Argüello and Francia lakes, both invaded by P. stratiotes. Sampling was conducted during June and July 2022 and included sampling of the weed, insects, bioindicator macroinvertebrates and cyanobacteria and water quality. The results show that water lettuce plants were more vigorous in Argüello lake but had a higher reproductive rate in Francia Lake. Two phytophagous insects associated with this weed were found: the weevil Neohydronomus affinis Hustache (Coleoptera: Curculionidae) and the leafhopper Lepidelphax pistiae Remes Lenicov (Hemiptera: Delphacidae), both potential candidates for use in augmentative biological control. The abundance of Curculionidae was 10.61 individuals/m² in Argüello Lake, while in Francia Lake 106.07 individuals/m² were recorded. L. pistiae was only found in Argüello Lake and its abundance reached 74.25 individuals/m². Although the two lakes are eutrophicated environments, the physicochemical and biological variables showed contrasting water quality conditions between them, mainly in terms of nutrient content. It is evident that mechanical control is not sustainable in these environments and therefore the application of augmentative biological control with mass rearing and release of biocontrol insects is recommended. These actions should be complemented simultaneously with treatments and public policies that tend to reduce nutrient inputs into the water. El objetivo de esta investigación fue evaluar el grado de invasión de la maleza acuática Pistia stratiotes L. (Araceae) en lagunas urbanas de Resistencia (Chaco), analizando las características ecológicas de estos ambientes para determinar la factibilidad de implementar el control biológico de malezas acuáticas con insectos. El estudio se realizó en las lagunas Argüello y Francia, ambas invadidas por P. stratiotes. Los muestreos se realizaron durante junio y julio de 2022 e incluyeron toma de muestras de la maleza, insectos, macroinvertebrados bioindicadores, fitoplancton y calidad de agua. Los resultados evidencian que las plantas de P. stratiotes tuvieron mayor vigor en Laguna Argüello, pero mayor tasa de reproducción en Laguna Francia. Se encontraron dos insectos fitófagos asociados a esta maleza: el gorgojo Neohydronomus affinis Hustache (Coleoptera: Curculionidae) y la chicharrita Lepidelphax pistiae Remes Lenicov (Hemiptera: Delphacidae) ambos potenciales candidatos para ser utilizados en un programa de control biológico aumentativo. La abundancia de Curculionidae fue de 10,61 individuos/m² en Laguna Argüello, mientras que en Laguna Francia se registraron 106,07 individuos/m². L. pistiae sólo se encontró en Laguna Argüello y su abundancia alcanzó los 74,25 individuos/m². Si bien las dos lagunas constituyen ambientes eutrofizados, las variables fisicoquímicas y biológicas evidenciaron condiciones contrastantes de calidad del agua entre ellas, principalmente en lo que se refiere al contenido de nutrientes. Es evidente que el control mecánico no es sostenible en estos ambientes, por lo que se recomienda la aplicación de control biológico aumentativo con crías masivas y liberación de insectos biocontroladores. Estas acciones deberían complementarse en simultáneo con tratamientos y políticas públicas que disminuyan los aportes de nutrientes en el agua. Facultad de Ciencias Exactas y Naturales y Agrimensura 2025-08-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/fce/article/view/7738 10.30972/fac.3517738 FACENA; Vol. 35 Núm. 1 (2025); 66-100 1851-507X 0325-4216 spa https://revistas.unne.edu.ar/index.php/fce/article/view/7738/8131 |