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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/23/3/JEQ0230030556
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Johnson, W. G.;
Lavy, T. L. |
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| Author Affiliation: | Dep. of Agronomy, Altheimer Lab, Univ. of Arkansas, Fayetteville |
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| Title: | In-situ dissipation of benomyl, carbofuran, thiobencarb, and ticlopyr at three soil depths |
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| Source: | Journal of Environmental Quality. Vol. 23, No. 3, May/June 1994, p. 556-562. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Pesticide persistence; Soil depth; Benomyl; Carbofuran; Thiobencarb; Triclopyr
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| Abstract/Contents: | "Data are lacking concerning the persistence of pesticides used in Arkansas rice production. Studies were conducted to examine the dissipation characteristics in field studies of four commonly used pesticides. Crowley silt loam (Fine, montmorillonitic thermic Typic Albaqualfs) from 2, 20, or 60 cm was treated with benomyl (methyl-1-(butylcarbamoyl)-2-benzimidazole-2-yl carbamate), carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate), thiobencarb (S-[(4-chlorophenyl)methyl]diethylcarbamothioate), or triclopyr ([(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid), and buried in leaching or degradation containers for 0, 34, 104, 184, 280, 371, 736, or 1066 d at Stuttgart, AR. Degradation of carbofuran, thiobencarb, and triclopyr was more rapid than the benomyl metabolite MBC (methyl-2-benzimidazole carbamate) with time for 50% of the initial dose to dissipate (DT50) being 94 d or less. The carbofuran metabolite 3-keto carbofuran (2,3-dihydro-2,2-dimethyl-3-keto-benzofuranyl-N-methyl carbamate) was not detected during this time period. Trace levels of 3-hydroxy carbofuran (2,3-dihydro-2,2-dimethyl-3-hydroxy-benzofuranyl-N- methyl carbamate) were detected periodically. The benomyl metabolite MBC was the most persistent pesticide in this study with DT50 values of 179 to 1020 d. The rates of dissipation decreased with increasing soil depth for all pesticides." used in |
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| Language: | English |
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| References: | 25 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, W. G., and T. L. Lavy. 1994. In-situ dissipation of benomyl, carbofuran, thiobencarb, and ticlopyr at three soil depths. J. Environ. Qual. 23(3):p. 556-562. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/23/3/JEQ0230030556
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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