Degradation of Imidacloprid in Chrysanthemi Flos and Soil

  • Jialun Wu
  • Houdao Wei
  • Jian Xue


Degradation of imidacloprid in chrysanthemi flos and cultivated soil was studied. The half-lives of imidacloprid were 3.55–5.17 days (soil), 2.10–3.98 days (fresh buds and flowers), 22.14 days (dry flowers, 5°C) and 13.08 days (dry flower, 20°C), separately. The temperature can affect imidacloprid degradation in soil and dry chrysanthemum buds and flowers. Imidacloprid residues in chrysanthemum flowers were more stable during store stage than growing one. Few imidacloprid residues would be dissolved into chrysanthemum tea liquor when the residue in dry buds or dry flowers was below 0.8 mg/kg.


Pesticide degradation Imidacloprid Chrysanthemi flos 



We express our gratitude to Mr. Liming Zhu and Agricultural Extending Center of Tongxiang City, Zhejiang Province, China for providing help during field test stage. National S&T Major Special Project on Major New Drug Innovation. Item Number: 2009ZX09502-027.


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© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental ToxicologyZhejiang UniversityHangzhouChina
  2. 2.Chinese Academy of Medical Sciences and Peking Union Medical CollegeInstitute of Medicinal Plant DevelopmentBeijingChina

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