Leaching of insecticides used in blueberry production and their toxicity to red worm
Soil columns were collected from a blueberry field, and insecticide solutions were allowed to leach through these columns. Insecticides from four different chemical classes were applied at two different rates: the concentration at which the insecticides wash off blueberries under rainfall conditions...
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| 格式: | 文件 |
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Elsevier
2020
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| _version_ | 1825720482915155968 |
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| author | Hulbert, Daniel Raja Jamil, Raja Zalinda Isaacs, Rufus Vandervoort, Christine Erhardt, Susan Wise, John |
| author_facet | Hulbert, Daniel Raja Jamil, Raja Zalinda Isaacs, Rufus Vandervoort, Christine Erhardt, Susan Wise, John |
| author_sort | Hulbert, Daniel |
| collection | UM |
| description | Soil columns were collected from a blueberry field, and insecticide solutions were allowed to leach through these columns. Insecticides from four different chemical classes were applied at two different rates: the concentration at which the insecticides wash off blueberries under rainfall conditions and the labeled field rate at which they are sprayed. The soil columns were divided into thirds; top, middle and bottom. Soil bioassays using Eisenia foetida Savigny, as an indicator species, were set up to determine the toxicity of the insecticides at a top, middle and bottom layer of the soil column. The mass of E. foetida was also measured after the bioassay experiment was completed. The concentrations at which insecticides wash-off of blueberries from rainfall were not lethal to E. foetida. In order to support mortality data, insecticide residues were quantified in the soil layers for each insecticide. Under field rate leaching conditions, carbaryl showed the high levels of toxicity in the top and middle layers of soil suggesting that it has the highest risk to organisms from leaching. This study will help blueberry growers make informed decisions about insecticide use, which can help minimize contamination of the environment. © 2019 Elsevier Ltd |
| first_indexed | 2024-03-06T05:35:50Z |
| format | Article |
| id | um.eprints-14209 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:35:50Z |
| publishDate | 2020 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-142092019-11-11T03:58:38Z http://eprints.um.edu.my/14209/ Leaching of insecticides used in blueberry production and their toxicity to red worm Hulbert, Daniel Raja Jamil, Raja Zalinda Isaacs, Rufus Vandervoort, Christine Erhardt, Susan Wise, John Q Science (General) QD Chemistry QH Natural history TP Chemical technology Soil columns were collected from a blueberry field, and insecticide solutions were allowed to leach through these columns. Insecticides from four different chemical classes were applied at two different rates: the concentration at which the insecticides wash off blueberries under rainfall conditions and the labeled field rate at which they are sprayed. The soil columns were divided into thirds; top, middle and bottom. Soil bioassays using Eisenia foetida Savigny, as an indicator species, were set up to determine the toxicity of the insecticides at a top, middle and bottom layer of the soil column. The mass of E. foetida was also measured after the bioassay experiment was completed. The concentrations at which insecticides wash-off of blueberries from rainfall were not lethal to E. foetida. In order to support mortality data, insecticide residues were quantified in the soil layers for each insecticide. Under field rate leaching conditions, carbaryl showed the high levels of toxicity in the top and middle layers of soil suggesting that it has the highest risk to organisms from leaching. This study will help blueberry growers make informed decisions about insecticide use, which can help minimize contamination of the environment. © 2019 Elsevier Ltd Elsevier 2020 Article PeerReviewed Hulbert, Daniel and Raja Jamil, Raja Zalinda and Isaacs, Rufus and Vandervoort, Christine and Erhardt, Susan and Wise, John (2020) Leaching of insecticides used in blueberry production and their toxicity to red worm. Chemosphere, 241. p. 125091. ISSN 0045-6535, DOI https://doi.org/10.1016/j.chemosphere.2019.125091 <https://doi.org/10.1016/j.chemosphere.2019.125091>. https://doi.org/10.1016/j.chemosphere.2019.125091 doi:10.1016/j.chemosphere.2019.125091 |
| spellingShingle | Q Science (General) QD Chemistry QH Natural history TP Chemical technology Hulbert, Daniel Raja Jamil, Raja Zalinda Isaacs, Rufus Vandervoort, Christine Erhardt, Susan Wise, John Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title | Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title_full | Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title_fullStr | Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title_full_unstemmed | Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title_short | Leaching of insecticides used in blueberry production and their toxicity to red worm |
| title_sort | leaching of insecticides used in blueberry production and their toxicity to red worm |
| topic | Q Science (General) QD Chemistry QH Natural history TP Chemical technology |
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