Residual Effects of Glyphosate Herbicide in Ecological Restoration.
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| Title: | Residual Effects of Glyphosate Herbicide in Ecological Restoration. |
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| Authors: | Cornish, P. S1 p.cornish@uws.edu.au, Burgin, S.1 |
| Source: | Restoration Ecology. Dec2005, Vol. 13 Issue 4, p695-702. 8p. 4 Charts. |
| Subjects: | Restoration ecology, Glyphosate, Herbicides, Transplanting (Plant culture), Root growth, Plant roots, Themeda, Soils, Grasses |
| Abstract: | This study assesses the risks in ecological restoration arising from transplanting into soil containing glyphosate residues. Four Australian restoration species were grown for 60 days in nonadsorbing media treated continuously with glyphosate to establish threshold concentrations for damage. Visual signs of injury were observed in three species, and severe effects on root growth in all species, at solution concentrations as low as 18 mg/L. Only the perennial grass Themeda sp. died at this concentration, with other species surviving at concentrations in the range 36–360 mg/L, beyond which all plants died. Fourteen days exposure followed by removal of glyphosate from root media produced similar effects. Field and glasshouse experiments with the relatively tolerant tree species Angophora costata showed that application rates in the range 10–50 L/ha of herbicide product (360 g/L) would be needed to sustain damage to young plants transplanted into soil typical of local restoration sites. The volume of spray delivered using a hand-operated sprayer varied between operators by 5- and 10-fold to complete the same tasks, at the high end presenting a potential risk to the most tolerant species under field conditions, even when spray concentrations follow label instructions. For all but the most sensitive species, the risk of glyphosate residues in ecological restoration should be minimized by training operators of unregulated applicators to deliver controlled volumes of herbicide when spot spraying prior to transplanting. [ABSTRACT FROM AUTHOR] |
| Copyright of Restoration Ecology is the property of Wiley-Blackwell 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: 18904604 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Residual Effects of Glyphosate Herbicide in Ecological Restoration. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cornish%2C+P%2E+S%22">Cornish, P. S</searchLink><relatesTo>1</relatesTo><i> p.cornish@uws.edu.au</i><br /><searchLink fieldCode="AR" term="%22Burgin%2C+S%2E%22">Burgin, S.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Restoration+Ecology%22">Restoration Ecology</searchLink>. Dec2005, Vol. 13 Issue 4, p695-702. 8p. 4 Charts. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Restoration+ecology%22">Restoration ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Glyphosate%22">Glyphosate</searchLink><br /><searchLink fieldCode="DE" term="%22Herbicides%22">Herbicides</searchLink><br /><searchLink fieldCode="DE" term="%22Transplanting+%28Plant+culture%29%22">Transplanting (Plant culture)</searchLink><br /><searchLink fieldCode="DE" term="%22Root+growth%22">Root growth</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+roots%22">Plant roots</searchLink><br /><searchLink fieldCode="DE" term="%22Themeda%22">Themeda</searchLink><br /><searchLink fieldCode="DE" term="%22Soils%22">Soils</searchLink><br /><searchLink fieldCode="DE" term="%22Grasses%22">Grasses</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study assesses the risks in ecological restoration arising from transplanting into soil containing glyphosate residues. Four Australian restoration species were grown for 60 days in nonadsorbing media treated continuously with glyphosate to establish threshold concentrations for damage. Visual signs of injury were observed in three species, and severe effects on root growth in all species, at solution concentrations as low as 18 mg/L. Only the perennial grass Themeda sp. died at this concentration, with other species surviving at concentrations in the range 36–360 mg/L, beyond which all plants died. Fourteen days exposure followed by removal of glyphosate from root media produced similar effects. Field and glasshouse experiments with the relatively tolerant tree species Angophora costata showed that application rates in the range 10–50 L/ha of herbicide product (360 g/L) would be needed to sustain damage to young plants transplanted into soil typical of local restoration sites. The volume of spray delivered using a hand-operated sprayer varied between operators by 5- and 10-fold to complete the same tasks, at the high end presenting a potential risk to the most tolerant species under field conditions, even when spray concentrations follow label instructions. For all but the most sensitive species, the risk of glyphosate residues in ecological restoration should be minimized by training operators of unregulated applicators to deliver controlled volumes of herbicide when spot spraying prior to transplanting. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Restoration Ecology is the property of Wiley-Blackwell 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: 10.1111/j.1526-100X.2005.00088.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 695 Subjects: – SubjectFull: Restoration ecology Type: general – SubjectFull: Glyphosate Type: general – SubjectFull: Herbicides Type: general – SubjectFull: Transplanting (Plant culture) Type: general – SubjectFull: Root growth Type: general – SubjectFull: Plant roots Type: general – SubjectFull: Themeda Type: general – SubjectFull: Soils Type: general – SubjectFull: Grasses Type: general Titles: – TitleFull: Residual Effects of Glyphosate Herbicide in Ecological Restoration. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cornish, P. S – PersonEntity: Name: NameFull: Burgin, S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2005 Type: published Y: 2005 Identifiers: – Type: issn-print Value: 10612971 Numbering: – Type: volume Value: 13 – Type: issue Value: 4 Titles: – TitleFull: Restoration Ecology Type: main |
| ResultId | 1 |
