The downside of copper pesticides: An earthworm's perspective

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dc.contributor.authorSchoffer, Jorge Tomas
dc.contributor.authorSolari, Fiama
dc.contributor.authorPetit-dit-Grezeriat, Lucas
dc.contributor.authorPelosi, Celine
dc.contributor.authorGinocchio, Rosanna
dc.contributor.authorYanez, Carolina
dc.contributor.authorMazuela, Pilar
dc.contributor.authorNeaman, Alexander
dc.date.accessioned2025-01-20T17:09:36Z
dc.date.available2025-01-20T17:09:36Z
dc.date.issued2024
dc.description.abstractThe widespread use of copper-based pesticides, while effective in controlling plant diseases, has been identified as a major source of copper contamination in soils. This raises concerns about potential adverse effects on earthworms, key players in soil health and ecosystem function. To inform sustainable pesticide practices, this study aimed to establish copper toxicity thresholds for earthworm avoidance in agricultural soils impacted by copper-based pesticides. We collected 40 topsoil samples (0-5 cm) from orchards and vineyards in the O'Higgins Region of central Chile, and 10 additional soils under native vegetation as background references. A standardized avoidance bioassay using Eisenia fetida assessed the impact of copper-based pesticides on the soils. Total copper concentrations ranged between 23 and 566 mg kg-1, with observed toxic effects on earthworms in certain soils. The effective concentration at 50% (EC50) for total soil copper, determined by Eisenia fetida's avoidance response, was 240 mg kg-1, with a 95% confidence interval of 193-341 mg kg-1. We further compared our EC50 values with existing data from agricultural soils impacted by mining activities. Interestingly, the results revealed a remarkable similarity between the thresholds for earthworm avoidance, regardless of the source of copper contamination. This observation underscores the universality of copper toxicity in agricultural ecosystems and its potential impact on soil biota. This study provides novel insights into copper toxicity thresholds for earthworms in real-world, pesticide-contaminated soils.
dc.description.funderAgencia Nacional de Investigacin y Desarrollo
dc.fuente.origenWOS
dc.identifier.doi10.1007/s11356-024-32078-7
dc.identifier.eissn1614-7499
dc.identifier.issn0944-1344
dc.identifier.urihttps://doi.org/10.1007/s11356-024-32078-7
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91057
dc.identifier.wosidWOS:001145792400003
dc.language.isoen
dc.revistaEnvironmental science and pollution research
dc.rightsacceso restringido
dc.subjectLumbricidae
dc.subjectBioavailability
dc.subjectEcotoxicity
dc.subjectHeavy metals
dc.subjectOrchards
dc.subjectField-contaminated soil
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleThe downside of copper pesticides: An earthworm's perspective
dc.typeartículo
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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