Fate and Transport of Nursery-Box-Applied Tricyclazole and Imidacloprid in Paddy Fields

Phong, Thai Khanh, Nhung, Dang Thi Tuyet, Motobayashi, Takashi, Thuyet, Dang Quoc and Watanabe, Hirozumi (2009) Fate and Transport of Nursery-Box-Applied Tricyclazole and Imidacloprid in Paddy Fields. Water, Air and Soil Pollution, 202 1-4: 3-12. doi:10.1007/s11270-008-9953-z


Author Phong, Thai Khanh
Nhung, Dang Thi Tuyet
Motobayashi, Takashi
Thuyet, Dang Quoc
Watanabe, Hirozumi
Title Fate and Transport of Nursery-Box-Applied Tricyclazole and Imidacloprid in Paddy Fields
Journal name Water, Air and Soil Pollution   Check publisher's open access policy
ISSN 0049-6979
1573-2932
Publication date 2009-09-01
Year available 2008
Sub-type Article (original research)
DOI 10.1007/s11270-008-9953-z
Open Access Status Not Open Access
Volume 202
Issue 1-4
Start page 3
End page 12
Total pages 10
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Abstract The fate and transport of tricyclazole and imidacloprid in paddy plots after nursery-box application was monitored. Water and surface soil samples were collected over a period of 35 days. Rates of dissipation from paddy waters and soils were also measured. Dissipation of the two pesticides from paddy water can be described by first-order kinetics. In the soil, only the dissipation of imidacloprid fitted to the simple first-order kinetics, whereas tricyclazole concentrations fluctuated until the end of the monitoring period. Mean half-life (DT50) values for tricyclazole were 11.8 and 305 days, respectively, in paddy water and surface soil. The corresponding values of imidacloprid were 2.0 and 12.5 days, respectively, in water and in surface soil. Less than 0.9% of tricyclazole and 0.1% of imidacloprid were lost through runoff during the monitoring period even under 6.3 cm of rainfall. The pesticide formulation seemed to affect the environmental fate of these pesticides when these results were compared to those of other studies.
Keyword Tricyclazole
Imidacloprid
Dissipation
Nursery box
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online: 20 December 2008

Document type: Journal Article
Sub-type: Article (original research)
Collection: National Research Centre for Environmental Toxicology Publications
 
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Created: Wed, 09 Mar 2011, 23:50:15 EST