Residues Analysis of Acetamiprid, Boscalid, Imidacloprid and Pyraclostrobin in the Minor Crop Mustard Green under Greenhouse Conditions for Evaluation of their Potentiality of PLS Violation

Kim, Young Eun; Kim, Seon Wook; Lim, Da Jung; Kim, In Soo

doi:10.5338/kjea.2020.39.3.25

Cited by 3 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The applied rate was determined based on the diazinon level used in greenhouse soil consecutively for five years. The soils of each plot were mixed by using a land management machine (Dongyang Tech., Daegu, Korea), as previously described [ 14 ].…”

Section: Methodsmentioning

confidence: 99%

Uptake of Soil-Residual Diazinon by Rotational Lettuce under Greenhouse Conditions

Yoon

Lim

Lee

et al. 2022

Foods

View full text Add to dashboard Cite

Pesticide residue is an increasing concern in rotational crop practices. The pesticide used for the primary crop may re-enter the secondary crop, thus exceeding pesticide levels set by the positive list system (PLS). As such, evaluation of pesticide residue translocated into rotational crops is required for ensuring pesticide safety. In this study, we investigated the residue pattern of diazinon translocated into lettuce as a typical rotational crop in Korea. Diazinon was used to treat greenhouse soil at the maximum annual application rate before crop planting. Diazinon residues in soil and lettuce were investigated using liquid chromatography/tandem mass spectroscopy and a modified quick, easy, cheap, effective, rugged, safe (QuEChERS) method. The limit of quantitation (LOQ) of diazinon was found as 0.005 mg/kg for the plant and soil samples. The recovery of diazinon at the LOQ and 10× the LOQ ranged from 100.2% to 108.7%. The matrix calibration curve showed linearity, with R2 values > 0.998. Diazinon residue in soil dissipated over time after the initial treatment, generating first-order kinetics (R2 = 0.9534) and having a half-life of about 22 days. The uptake ratio (UTR) of diazinon from the soil to the plant ranged from 0.002 to 0.026 over the harvest period. Considering the UTRs, diazinon residue in the edible leaf could exceed the PLS level (0.01 mg/kg) if lettuce is rotated in soil containing >0.357 mg/kg of diazinon. Based on our findings, to comply with the PLS, a 3-month plant-back interval is required following diazinon treatment and/or setting the maximum residue limit of diazinon for lettuce.

show abstract

Section: Methodsmentioning

confidence: 99%

Uptake of Soil-Residual Diazinon by Rotational Lettuce under Greenhouse Conditions

Yoon

Lim

Lee

et al. 2022

Foods

View full text Add to dashboard Cite

show abstract

Plant-Back Intervals of Imicyafos Based on Its Soil Dissipation and Plant Uptake for Rotational Cultivation of Lettuce and Spinach in Greenhouse

Lim

Kim

et al. 2021

Agriculture

View full text Add to dashboard Cite

The plant-back intervals (PBIs) of imicyafos were investigated for rotational cultivation of lettuce and spinach in greenhouses. Imicyafos dissipation in soil and its plant uptake were evaluated by liquid chromatography-tandem mass spectrometry. Bioconcentration ratios (BCRs) were calculated by comparing the residues in plants to the initial residue in soil. The BCRs were used to calculate the soil acceptable residues (SARs) transferable to plants at the Positive List System (PLS) level. The number of days, PBIs for reaching SARs were obtained from the dissipation equation for imicyafos in soil. In soil, imicyafos followed first order dissipation kinetics (R2 = 0.975) with a half-life of 40.8 days. The BCRs ranged from 0.041 to 0.469 in the edible leaf parts of lettuce and 0.006 to 0.134 in those of spinach. The SARs ranged from 0.021 to 0.244 for lettuce and 0.075 to 1.667 mg kg−1 for spinach. The PBIs of imicyafos were estimated to be 213.9 to 357.3 days for lettuce and 100.8 to 283.6 days for spinach. This study suggests at least a minimum 1-year interval after the final application of imicyafos as a management method that complies with the PLS for the rotational cultivation of lettuce and spinach.

show abstract

Comparison of Acrinathrin, Diflubenzuron, Mandipropamid and Pyraclostrobin Residue with and without Rind of Oriental Melon (Cucumis melo L. var makuwa Makino)

Kim¹,

Park²,

Noh³

et al. 2021

kjps

View full text Add to dashboard Cite

Residues Analysis of Acetamiprid, Boscalid, Imidacloprid and Pyraclostrobin in the Minor Crop Mustard Green under Greenhouse Conditions for Evaluation of their Potentiality of PLS Violation

Cited by 3 publications

References 17 publications

Uptake of Soil-Residual Diazinon by Rotational Lettuce under Greenhouse Conditions

Uptake of Soil-Residual Diazinon by Rotational Lettuce under Greenhouse Conditions

Plant-Back Intervals of Imicyafos Based on Its Soil Dissipation and Plant Uptake for Rotational Cultivation of Lettuce and Spinach in Greenhouse

Comparison of Acrinathrin, Diflubenzuron, Mandipropamid and Pyraclostrobin Residue with and without Rind of Oriental Melon (Cucumis melo L. var makuwa Makino)

Contact Info

Product

Resources

About