Effect of Bagging Technique on the Residue Patterns of Thiacloprid and Lufenuron in Grape fruit (Vitis labrusca L.)

BACKGROUND: Dissipation patterns of insecticides (acequinocyl, clothianidin, diflubenzuron, thiacloprid, and thiamethoxam) on strawberry grown in plastic-covered greenhouse were evaluated at 7 intervals including the preharvest interval after application. This study was performed to determine the residue concentrations, half-lives and dissipation rates in strawberry for the harvest periods. METHODS AND RESULTS: Acequinocyl, clothianidin, diflubenzuron, thiacloprid, and thiamethoxam were applied in accordance with critical good agricultural practices for strawberry. Strawberry samples were collected at 0, 1, 2, 3, 5, 7 and 10 days after application. Quantitaion was performed by HPLC/DAD and HPLC-MSMS system with C 18 column. The limit of quantitation (LOQ) values varied between were 0.00025~0.05 mg/kg on strawberry. The recoveries of acequinocyl, clothianidin, diflubenzuron, thiacloprid and thiamethoxam at two concentrations ranged from 70.9~ 104.9% on strawberry. The half-lives of pesticide dissipation on strawberry for two fields ranged from 1.3~8.2 days. The dissipation rates were evaluated according to the statistics method with a 95% confidence. CONCLUSION: The residue levels of insecticides (acequinocyl, clothianidin, diflubenzuron, thiacloprid, and thiamethoxam) on strawberry at 0-day after application were below the specified values by Korean MRL. To estimate dissipation rate constant of pesticides on crop for harvest periods, it is important to set the pre-harvest residue limit for human health and consumer protection in Korea.

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Determination of Pre-Harvest Residue Limits and Evaluation of Pre-Harvest Intervals using a Probabilistic Approach in Greenhouse-Grown butterbur

Gwon,

Shin,

Choi

et al. 2024

kjps

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Effect of Bagging Technique on the Residue Patterns of Thiacloprid and Lufenuron in Grape fruit (Vitis labrusca L.)

Cited by 3 publications

References 5 publications

Monitoring and Risk Assessment of Pesticide Residues Farmers’ Market Produce in Northern Gyeonggi-do

Monitoring and Risk Assessment of Pesticide Residues Farmers’ Market Produce in Northern Gyeonggi-do

Residue Dissipation Kinetics and Safety Evaluation of Insecticides on Strawberry for the Harvest Periods in Plastic-covered Greenhouse Conditions

Determination of Pre-Harvest Residue Limits and Evaluation of Pre-Harvest Intervals using a Probabilistic Approach in Greenhouse-Grown butterbur

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