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Residual Fate of the Fungicide Tetraconazole (4% EW) in Mango

Abstract

A field trial was carried out to understand the persistence behaviour of tetraconazole in mango and also in the soil of mango orchard following five applications @ 50 g a.i./ha (T 1) and 100 g a.i./ha (T 2). The initial deposits were found to be 0.23 and 0.38 μg/g for T 1 and T 2 doses. The theoretical maximum residue contribution (TMRC) of tetraconazole in dietary exposure appeared to be toxicologically safe for consumption as compared with maximum permissible intake (MPI). The half-life values of tetraconazole in mango were in the range of 4–5 days. The harvest samples of mango and soil were free from tetraconazole residues.

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Acknowledgments

The reference standards, tetraconazole formulations and financial assistance provided by Isagro (Asia) Agrochemicals Pvt Ltd. are duly acknowledged. Facilities provided by BCKV for conducting the experiment are also acknowledged.

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Correspondence to Ramen Kumar Kole.

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Significance of the study: The above entitled research work was conducted in Deptt of Agril Chemicals, BCKV. A field trial was carried out to understand the persistence behaviour of tetraconazole in mango and also to find out the occurrence of residues in harvest samples of mango and in the soil of mango orchard. The theoretical maximum residue contribution (TMRC) of tetraconazole in dietary exposure was evaluated as compared with maximum permissible intake (MPI). Mango (Mangifera indica) is the leading fruit crop of India and considered to be the king of fruits. The ripe fruits as well as the green fruits are consumed in a number of ways. Tetraconazole is recommended for use in Mango to control Powdery Mildew disease. Dissipation pattern of the compound and corresponding safety evaluation is necessary.

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Alam, S., Kole, R.K. & Bhattacharyya, A. Residual Fate of the Fungicide Tetraconazole (4% EW) in Mango. Bull Environ Contam Toxicol 87, 444 (2011). https://doi.org/10.1007/s00128-011-0362-4

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Keywords

  • Persistence
  • Tetraconazole
  • Mango
  • Soil
  • TMRC
  • MPI