Dissipation of flubendiamide in/on Brinjal (Solanum melongena) fruits
2011
Chawla, Suchi | Patel, Anil R. | Patel, Hemlatta K. | Shah, Paresh G.
A field experiment was conducted at Anand Agricultural University, Anand during Sept–Dec, 2009 to study the rate of degradation of flubendiamide in/on brinjal fruits following foliar application of Fame 480 SC at 90 (standard dose) and 180 (double dose) g a.i. ha − 1. The residues estimated using HPLC revealed persistence of flubendiamide in/on brinjal till 3rd and 7th day after the last spray at standard and double dose, respectively. The residues of flubendiamamde were reported as parent compound, and no desiodo metabolite was detected. The initial deposits of 0.17 and 0.42 μg g − 1 in/on brinjal fruits reached below determination level of 0.05 μg g − 1 on the 5th and 10th day at standard and double dose, respectively. The half life of flubendiamide on brinjal fruits ranged from 2.68 to 2.55 days. Soil samples analyzed on the 15th day after the last spray revealed residues at below determination level (0.05 μg g − 1) at either dose of application.
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