Dissipation of β-cyfluthrin Residues on Chickpea

摘要

Dissipation of β-cyfluthrin was studied on chickpea following two applications @ 12.5 and 25 g ai ha~(-1). Initial deposits of β-cyfluthrin in green pods were 0.109 and 0.135 mg kg~(-1), which dissipated to the extent of 88.1 -92.6% with half-life of 3.34 and 4.01 days, respectively. The residues persisted beyond 15 days in higher dose. The safe waiting periods were 3 and 5 days, respectively. At harvest, the residues were below detectable level (< 0.008 mg kg~(-1)) in grains and pod covers.