Field-scale examination of neonicotinoid insecticide persistence in soil as a result of seed treatment use in commercial maize (corn) fields in southwestern Ontario.
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| Title: | Field-scale examination of neonicotinoid insecticide persistence in soil as a result of seed treatment use in commercial maize (corn) fields in southwestern Ontario. |
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| Authors: | Schaafsma, Arthur1, Limay‐Rios, Victor1, Xue, Yingen1, Smith, Jocelyn1, Baute, Tracey2 |
| Source: | Environmental Toxicology & Chemistry. Feb2016, Vol. 35 Issue 2, p295-302. 8p. |
| Subjects: | Neonicotinoids, Insecticides & the environment, Pollinators, Zea, Corn farming |
| Abstract: | Neonicotinoid insecticides, especially as seed treatments, have raised concerns about environmental loading and impacts on pollinators, biodiversity, and ecosystems. The authors measured concentrations of neonicotinoid residues in the top 5 cm of soil before planting of maize (corn) in 18 commercial fields with a history of neonicotinoid seed treatment use in southwestern Ontario in 2013 and 2014 using liquid chromatography-tandem mass spectrometry with electrospray ionization. A simple calculator based on first-order kinetics, incorporating crop rotation, planting date, and seed treatment history from the subject fields, was used to estimate dissipation rate from the seed zone. The estimated half-life (the time taken for 50% of the insecticide to have dissipated by all mechanisms) based on 8 yr of crop history was 0.64 (range, 0.25-1.59) yr and 0.57 (range, 0.24-2.12) yr for 2013 and 2014, respectively. In fields where neonicotinoid residues were measured in both years, the estimated mean half-life between 2013 and 2014 was 0.4 (range, 0.27-0.6) yr. If clothianidin and thiamethoxam were used annually as a seed treatment in a typical crop rotation of maize, soybean, and winter wheat over several years, residues would plateau rather than continue to accumulate. Residues of neonicotinoid insecticides after 3 yr to 4 yr of repeated annual use tend to plateau to a mean concentration of less than 6 ng/g in agricultural soils in southwestern Ontario. Environ Toxicol Chem 2016;35:295-302. © 2015 SETAC [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 112456404 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Field-scale examination of neonicotinoid insecticide persistence in soil as a result of seed treatment use in commercial maize (corn) fields in southwestern Ontario. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Schaafsma%2C+Arthur%22">Schaafsma, Arthur</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Limay‐Rios%2C+Victor%22">Limay‐Rios, Victor</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Xue%2C+Yingen%22">Xue, Yingen</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Smith%2C+Jocelyn%22">Smith, Jocelyn</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Baute%2C+Tracey%22">Baute, Tracey</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Toxicology+%26+Chemistry%22">Environmental Toxicology & Chemistry</searchLink>. Feb2016, Vol. 35 Issue 2, p295-302. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Neonicotinoids%22">Neonicotinoids</searchLink><br /><searchLink fieldCode="DE" term="%22Insecticides+%26+the+environment%22">Insecticides & the environment</searchLink><br /><searchLink fieldCode="DE" term="%22Pollinators%22">Pollinators</searchLink><br /><searchLink fieldCode="DE" term="%22Zea%22">Zea</searchLink><br /><searchLink fieldCode="DE" term="%22Corn+farming%22">Corn farming</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Neonicotinoid insecticides, especially as seed treatments, have raised concerns about environmental loading and impacts on pollinators, biodiversity, and ecosystems. The authors measured concentrations of neonicotinoid residues in the top 5 cm of soil before planting of maize (corn) in 18 commercial fields with a history of neonicotinoid seed treatment use in southwestern Ontario in 2013 and 2014 using liquid chromatography-tandem mass spectrometry with electrospray ionization. A simple calculator based on first-order kinetics, incorporating crop rotation, planting date, and seed treatment history from the subject fields, was used to estimate dissipation rate from the seed zone. The estimated half-life (the time taken for 50% of the insecticide to have dissipated by all mechanisms) based on 8 yr of crop history was 0.64 (range, 0.25-1.59) yr and 0.57 (range, 0.24-2.12) yr for 2013 and 2014, respectively. In fields where neonicotinoid residues were measured in both years, the estimated mean half-life between 2013 and 2014 was 0.4 (range, 0.27-0.6) yr. If clothianidin and thiamethoxam were used annually as a seed treatment in a typical crop rotation of maize, soybean, and winter wheat over several years, residues would plateau rather than continue to accumulate. Residues of neonicotinoid insecticides after 3 yr to 4 yr of repeated annual use tend to plateau to a mean concentration of less than 6 ng/g in agricultural soils in southwestern Ontario. Environ Toxicol Chem 2016;35:295-302. © 2015 SETAC [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/etc.3231 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 295 Subjects: – SubjectFull: Neonicotinoids Type: general – SubjectFull: Insecticides & the environment Type: general – SubjectFull: Pollinators Type: general – SubjectFull: Zea Type: general – SubjectFull: Corn farming Type: general Titles: – TitleFull: Field-scale examination of neonicotinoid insecticide persistence in soil as a result of seed treatment use in commercial maize (corn) fields in southwestern Ontario. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Schaafsma, Arthur – PersonEntity: Name: NameFull: Limay‐Rios, Victor – PersonEntity: Name: NameFull: Xue, Yingen – PersonEntity: Name: NameFull: Smith, Jocelyn – PersonEntity: Name: NameFull: Baute, Tracey IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 07307268 Numbering: – Type: volume Value: 35 – Type: issue Value: 2 Titles: – TitleFull: Environmental Toxicology & Chemistry Type: main |
| ResultId | 1 |
