Flubendiamide insecticide is widely used in Indian subtropical condition to control lepidopteron pests mainly in rice and cotton. The present study reports leaching behaviour of flubendiamide, N 2-[1,1-dimethyl-2-(methylsulfonyl)ethyl]-3-iodo-N 1-[2-methyl-4-[1,2,2,2-tetrafluoro-1 (trifluoromethyl)ethyl] phenyl]-1,2-benzene dicarboxamide, in packed soil columns under different rainfall conditions. Flubendiamide did not leach out of the 25 cm long soil columns even after percolating water equivalent to 462.18 mm rainfall. After leaching with water equivalent to 462.18 mm rainfall, in analytical grade treatment, 68.06% of the recovered flubendiamide was the major amount present in 5–10 cm depth whereas in the formulation 67.22% of the recovered flubendiamide was confined to 0–5 cm depth. Results revealed that with percolating 160 mL of water residues of desiodo flubendiamide detected up to 20–25 cm layer along with 9.47% residues in this layer, indicating that metabolite is more mobile as compared to analytical grade flubendiamide and 39.35% SC formulation. Formulation slowed the downward mobility of flubendiamide in soil column. Flubendiamide is slightly mobile in sandy loam soil, but desiodo flubendiamide is relatively more mobile and may leach into ground water.
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Das, S.K., Mukherjee, I. Flubendiamide Transport Through Packed Soil Columns. Bull Environ Contam Toxicol 88, 229–233 (2012). https://doi.org/10.1007/s00128-011-0429-2
- 39.35% SC formulation