Persistence of Carbaryl Within Boreal, Temperate and Mediterranean Ecosystems
| Autor: | Patrick J. Shea, Edward H. Holsten, Felton L. Hastings, Richard A. Werner |
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| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Journal of Economic Entomology. 91:665-670 |
| ISSN: | 1938-291X 0022-0493 |
| DOI: | 10.1093/jee/91.3.665 |
| Popis: | The dissipation and movement of carbaryl within soils of wet and dry sites in boreal (south central Alaska), temperate (north western North Carolina) and Mediterranean (east central California) ecosystems was determined by high-pressure liquid chromatography analyses at 1, 30, 60, 90, 365, and 485 d after applications of aqueous 2% to forest soils. Highest levels of carbaryl occurred within the uppermost soil layers of each site. The greatest carbaryl persistence was within the North Carolina dry site. All sites, with the exceptions of Alaska dry and North Carolina wet, had carbaryl levels exceeding 20 ppm in the upper layer of soil at 90 d. The decreasing order of carbaryl persistence was North Carolina dry > California wet > California dry> Alaska wet> North Carolina wet > Alaska dry. Only twice were replicated amounts of carbaryl found in the lowest soil layer (North Carolina dry, 60 d, Alaska wet, 1 d ) and these levels were only 5.6 and 5.1 ppm, respectively. |
| Databáze: | OpenAIRE |
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