Dissipation and persistence of clothianidin in soil following its application in sugarcane field

The residues of clothianidin from soil were extracted and cleaned up by QuEChERS approach and analyzed by liquid chromatography mass spectrometry (LC-MS/MS). The dissipation and persistence of clothianidin in soil was studied following soil drenching of clothianidin at two different dosages i.e. 125 and 250 g a.i. ha⁻¹. Average initial deposits of clothianidin in soil were found to be 1.35 and 2.56 mg kg⁻¹, respectively, at recommended and double the recommended dose. The limit of quantification of clothianidin was worked out to be 0.01 mg kg⁻¹ for soil. The residues could not be detected after 90 days following the application of clothianidin at lower and higher dosages. Half-life (t_1/2) of clothianidin on soil was observed to be 15.18 days for both the dosages.