Studied were conducted to monitor the terminal pesticide residues in unpolished, polished and parboiled rice. Fifteen rice varieties were collected from Regional Agricultural Research Station (RARS), Titabar of Assam Agricultural University during 2002. Each variety was tested in terms of unpolished, polished and parboiled form, for the presence of pesticide residues.

The samples of okra and brinjal fruit and soil collected from non-IPM and IPM fields were analyzed for insecticides viz chlorpyriphos, cypermethrin and monocrotophos, widely used in these crops in adopted village Raispur, in Ghaziabad District (UP).

Four water and sediment samples were drawn from Keoladeo National Park Lake, Bharatpur to monitor pesticide residues. Estimation was done by GC-ECD using multiresidue method for organochlorine and synthetic pyrethroid insecticides.

Dissipation of lindane (400 and 800 g ai ha-1) and fenvalerate (75 and 150 g ai ha-1) was studied on chickpea crop following two applications of their dust formation. Initial deposits of lindane on green pods were 2.85 and 5.36 mg kg-1 at recommended and double dose, which dissipated with half-life of 3.3-3.6 days.

Newly developed Enzyme Linked Immuno Sorbent Assay (ELISA) technique has been used for monitoring of wheat grain and flour samples for endosulfan residues. Data indicated that eight samples out of fifteen contained endosulfan residues. The average concentation varied from 0.65-6.1 ppm. ELISA data correlated well with GC analysis with correlation coefficient of 0.98.

A multiresidue method has been developed for the analysis of residues of 25 pesticides belonging to organochlorines, organophosphates, pyrethroids and a fungicide thifluzamide in Basmati rice. The Gas Liquid Chromatograph (GLC) equipped with a capillary column and electron capture detector (ECD) was used for estimation.