Abstract
The dissipation, residues, and distribution of spirodiclofen, a new type of insecticide and acaricide that belongs to the class of ketoenols or tetronic acids, in citrus were investigated in this study. Risk assessment of sprodiclofen was also conducted based on those data. The open-field experiments were conducted in Guangdong, Fujian, and Guangxi of China. Results showed that the half-lives in citrus ranged from 6.5 to 13.6 days at three sites. The terminal residues of spirodiclofen were all below the FAO/WHO maximum residue limit of 0.5 mg/kg in citrus, when they were determined 14 days after final application. Distribution of spirodiclofen in peel and flesh was analyzed, and residues were found to be concentrated on peel. Risk assessment was performed by calculation of risk quotient, which showed that the use of spirodiclofen is comparably safe for humans.
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References
Bai, Y., Xu, P. J., Gao, X. S., Sun, W., & Zhang, H. Y. (2009). Determination of residual spirodiclofen in apple and soil. Journal of Analytical Sciences, 25(2), 229–231.
Hiemstra, M., & Kok, A. (2007). Comprehensive multi-residue method for the target analysis of pesticides in crops using liquid chromatography–tandem mass spectrometry. Journal of Chromatography. A, 1154, 3–25.
Karmakar, R., & Kulshrestha, G. (2009). Persistence, metabolism, and safety evaluation of thiamethoxam in tomato crop. Pest Manage Science, 65, 931–937.
Li, X., Yan, Q. X., Zhao, P., Zhang, M. C., & Liu, S. W. (2011). Market situation and biological activity of spirodiclofen. Agrochemicals, 50(9), 680–682.
Liu, J. N., Han, Z. H., Wu, G. Q., Shi, L. L., & Shan, Z. J. (2007). Gas chromatographic determination of spirodiclofen residues in orange and soil. Journal of Agro-Environment Science, 26, 647–650.
Lu, H., Chen, B. X., Dong, Y. Z., Cheng, J. N., & Zhang, Y. J. (2010). A novel acaricide spiromesifen activity and efficacy evaluation for Panonychus citri. South China Fruits, 39(5), 43–46.
Nguyena, T. D., Hana, E. M., Seoa, M. S., Kima, S. R., Yuna, M. Y., Leeb, D. M., & Lee, G. H. (2008). A multi-residue method for the determinationof 203 pesticides in rice paddies using gas chromatography/mass spectrometry. Analytica Chimica Acta, 619, 67–74.
Qian, Y. Z., & Li, Y. (2007). Risk Assessment for Quality and Safety of Agro-foods: Principles, Methodologies and Applications, Beijing: Standards Press of China.
Shan, Y. (2006). Industrial technology research and development of citrus processing. Journal of Chinese Institute of Food Science and Technology, 1(6), 423.
Xie, L., Yang, R. B., Fu, Q., Xiao, S. H., & Liu, W. R. (2012). Residue and dissipation dynamics of spirodiclofen in orange and soil. Chinese Agricultural Science Bulletin, 28(31), 271–276.
Xu, P. J., Gao, X. S., Tao, B., Zhang, H. Y., & Jiang, S. H. (2008). Determination of spirodiclofen residue in nine fruits by gas chromatography–quadruple mass spectrometry with dispersive solid phase extraction. Chinese Journal of Analytical Chemistry, 36(11), 1515–1520.
Yuan, J. Z., & Tang, Z. H. (2005). Acaricides and their mode of action. World Pesticide, 27(6), 1–5.
Acknowledgment
This study was supported by specific programs for promote scientific and technological development of the service industry, Science and Technology Department of Guangdong Province (item no. 200903033-7).
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Sun, H., Liu, C., Wang, S. et al. Dissipation, residues, and risk assessment of spirodiclofen in citrus. Environ Monit Assess 185, 10473–10477 (2013). https://doi.org/10.1007/s10661-013-3345-6
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DOI: https://doi.org/10.1007/s10661-013-3345-6