Abstract
A supervised field trial was conducted at four different agroclimatic locations in India to evaluate the dissipation pattern and risk assessment of carbendazim and mancozeb in mango fruits following foliar application of mixed formulation of carbendazim 12 % and mancozeb 63 % fungicide (SAAF-75WP) at recommended dose (90 + 472.5) and double the recommended dose (180 + 945 g a.i. ha−1). Average initial deposition of carbendazim was in the range of 1.12 to 2.7 and 1.95 to 4.09 mg kg−1 and for mancozeb in the range of 2.25 to 2.71 and 4.17 to 5.96 mg kg−1, given at respective doses. Residues of carbendazim and mancozeb were dissipated to the below detectable limit 7 days after spray at recommended dosage in all the locations. The fungicide degradation followed a first order kinetics with half-lives of 1–5 and 1–3 days, for carbendazim and mancozeb, respectively. The TMRC values, calculated from residue data generated from all four locations, were found to be below the MPI in mango fruit, and hence, the fungicide will not cause any adverse effect after consumption of mango fruits. This data could provide guidance for the proper and safe use of this fungicide mixture for managing disease incidence in mango in India.
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Authors are thankful to M/s United Phosphorus Limited, Mumbai for the financial assistance and providing the analytical standards and formulations.
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Devi, P.A., Paramasivam, M. & Prakasam, V. Degradation pattern and risk assessment of carbendazim and mancozeb in mango fruits. Environ Monit Assess 187, 4142 (2015). https://doi.org/10.1007/s10661-014-4142-6
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DOI: https://doi.org/10.1007/s10661-014-4142-6