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Imidacloprid was sprayed on mango cv. Dashehari at 0.3 mL L⁻¹ of water during pre-bloom stage with 6–8 cm panicle size (first week of March) to control hopper and carbosulfan was sprayed at 2.0 mL L⁻¹ of water in the trees of mango hybrid (H-1000) during fruit development stage (first week of May) to control leaf webber. Residues of both the insecticides were analysed in peel, pulp and fruit at different stages of fruit development and maturity. The initial residues of imidacloprid, after 30 days of spraying, were 1.21, 0.56 and 1.77 mg kg⁻¹ in peel, pulp and whole fruit, respectively. The residues persisted in peel for 60 days and in pulp for 50 days and dissipated with a half-life of 38 days. Mature Dashehari fruits at harvest (after 85 days of spraying) were free from imidacloprid residues. Carbosulfan in mango peel dissipated from 5.30 mg kg⁻¹ (after 1 h of spraying) to 0.05 mg kg⁻¹ at the time of harvest …