Quinalphos Residues in/on Brinjal and Cabbage

Field experiments were carried out for two seasons to study the magnitude of quinalphos residues in/on brinjal fruits and cabbage curds. One spray of 0.05% quinalphos was applied at fruiting stage in brinjal, while on cabbage 0.05 and 0.1% sprays were applied at curd formation. The safe waiting period for brinjal was 2.1 days with a half-lif of 0.9 days. The corresponding values for waiting period and half-life on cabbage were 2.5 and 4.2 days and 1.3 and 1.3 days for lower and higher doses, respectively.