Abstract
Fate of thiodicarb and its major metabolite in sandy loam soil were studied by applying thiodicarb (Larvin 75 WP) at 500 and 1000 g a. i. ha−1 under laboratory conditions. Samples drawn periodically were analysed on GC-FTD equipped with capillary column. The average initial deposits of total thiodicarb (thiodicarb and methomyl) were 0.025 and 0.035 mg kg−1 at single and double dosages, respectively. Residues of thiodicarb reached below the determination level (BDL) of 0.005 mg kg−1 after 15 days. Half-life periods for total thiodicarb were calculated to be 5.90 and 8.29 days at two doses, respectively, following first-order kinetics.
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The authors wish to express their gratitude to the head of the Department of Entomology for providing research facilities.
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Bisht, S., Chauhan, R., Kumari, B. et al. Fate of thiodicarb and its metabolite methomyl in sandy loam soil under laboratory conditions. Environ Monit Assess 187, 429 (2015). https://doi.org/10.1007/s10661-015-4640-1
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DOI: https://doi.org/10.1007/s10661-015-4640-1