| Autor: |
Paul, Ambily, George, Thomas, Kumar, S. Visal, Mithra, I. V., Zojiya, T. P. Emilie |
| Předmět: |
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| Zdroj: |
Pesticide Research Journal (09706763); Dec2020, Vol. 32 Issue 2, p277-283, 7p |
| Abstrakt: |
Results of a study on the dissipation and residues of imidacloprid and betacyfluthrin on foliar application of their pre-mix formulation Solomon 300 OD on chilli plant are reported. Two applications of 2 doses (@310 mL ha-1 and 620 mL ha-1) at 7 d interval at fruiting were done in field at College of Agriculture, Vellayani, Kerala. The residues of beta cyfluthrin and imidacloprid were estimated using GC-ECD and LCMS/MS, respectively. The mean initial deposits of betacyfluthrin in green chilli were 0.56 and 0.96 mg kg-1 for the recommended and the double doses, respectively. The residues dissipated and reached below the limit of quantification (<0.05 mg kg-1) at 25 d of spraying at the recommended concentration. The half life values were 6.98 and 10.08 d respectively for the recommended and double the recommended doses. The mean initial deposits of imidacloprid in green chilli were 0.99 and 2.27 mg kg-1 with half life values of 12.45 and 14.80 d, respectively for the recommended and double the recommended doses respectively. No residues above the limit of quantification (<0.01 mg kg-1) were detected in red chilli at harvest. The residues of beta-cyfluthrin were below the limit of quantification in harvest time soil samples, whereas the residues of imidacloprid were 0.06 and 0.13 mg kg-1 soil at the recommended and double the recommended doses respectively. Risk assessment studies revealed safety of the formulation for human consumption with TMRC values lower that MPI values for both the insecticides. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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