Gas‐liquid chromatographic studies on residues of endosulfan on chilli fruits

Studies on the residues of endosulfan were undertaken by GLC so as observe the dissipation of endosulfan and its isomers on green fruits of chilli, Capsicum annuum Linn. and also to know the effect of washing the fruits on the residues. The pattern of dissipation of endosulfan was conventional showing half-life less than two days. The waiting periods worked out were 5 and 7 days after protecting the crop with four sprays of 0.03 and 0.08% endosulfan respectively. The dissipation of alpha isomer was found faster than that of beta isomer. Washing of fruits from treated crop was found quite effective in reducing the level of residues on the fruits.