Abstract
Residue persistence of beta cyfluthrin and imidacloprid on mango was carried out after giving spray application of the combination formulation, beta cyfluthrin 9% + imidacloprid 21% (Solomon 300 OD) 3 times at the fruit formation stage. The treatments were, untreated control, standard dose of 75 g a.i. ha−1 and double dose of 150 g a.i. ha−1. Initial residues of beta cyfluthrin on mango fruits were 0.04 and 0.12 mg kg−1 from treatments at the standard and double doses, respectively. The residues dissipated with the half-life of 2.4 and 2.6 days and persisted for 5 days only. Initial residues of imidacloprid on mango fruits were 0.14 and 0.18 mg kg−1 from treatments at the standard and double doses, respectively. Imidacloprid residues degraded with the half-life of 3.06 and 4.16 days, respectively and persisted for 10 days. Mature mango fruits at harvest were free from residues of both insecticides. A safe pre-harvest interval of 8 days is recommended for consumption of mango fruits after treatment of the combination formulation.
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The authors thank Director, IIHR, Bangalore and ICAR, New Delhi for providing the facilities for carrying out this study.
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Mohapatra, S., Deepa, M. & Jagadish, G.K. Behavior of Beta Cyfluthrin and Imidacloprid in/on Mango (Mangifera indica L.) . Bull Environ Contam Toxicol 87, 202–207 (2011). https://doi.org/10.1007/s00128-011-0310-3
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DOI: https://doi.org/10.1007/s00128-011-0310-3