Dissipation and persistence of flubendiamide and thiacloprid in/on tomato and soil.

摘要

Flubendiamide, a phthalic acid diamide protects the plants against a broad range of economically important lepidopterus pests and thiacloprid a second generation neonicotinoid is effective against the sucking insects, white flies and jassids. To estimate the residues of flubendiamide and thiacloprid on tomato, analytical methods were validated by conducting recovery studies, residues were quantified by using HPLC on C₁₈ column and PDA at 260 lambda. Residues of flubendiamide declined below detectable level of 0.01 mg kg--1 after 5 and 7 days of application at lower and higher dose with RL₅₀ of 0.72 and 1.32 days, respectively. Thiacloprid residues reached below its detectable level of 0.01 mg kg--1 after 5 and 7 days of its lower and higher dose with RL₅₀ of 0.83 and 1.79 days, respectively. copyright Springer Science+Business Media New York 2012.