Is common dandelion (Taraxacum officinale agg.) foraged for food in vineyards pesticide residues free?

Skubic, Maruša (author), Baša Česnik, Helena (author), Velikonja Bolta, Špela (author), Rusjan, Denis (author), Šircelj, Helena (author)

Consumption of common dandelion (Taraxacum officinale agg.) can pose a risk when foraged in agroecosystems like vineyards where pesticides are frequently used. The aims of our study are to evaluate whether dandelion foraged in vineyards with different management practices (integrated pest management, organic, and biodynamic) in spring is suitable for consumption and to assess whether the contents of selected pesticide residues (PR) in integrated vineyards in dandelion vary throughout the seasons. Young dandelion leaves were sampled in spring, summer, and autumn in integrated vineyards, while in spring also in organic and biodynamic vineyards. The selected PR was analyzed using GC-MS/MS and LC-MS/MS, using extraction with acetonitrile. The method was validated on a dandelion matrix according to international guideline SANTE 11312/2021. Despite the use of many pesticides in integrated vineyards, only tebuconazole was detected in spring in one sample (0.005 mg/kg), while no PR was detected in dandelion from organic and biodynamic vineyards. However, at summer sampling seven different PR were detected, of which the kresoxim-methyl maximum residue limit was exceeded in five samples (0.012–0.029 mg/kg), while in autumn no PR was detected. Based on this study, it seems that dandelion leaves foraged in vineyards in spring could be unproblematic for consumption.

• Language: English
• Keywords: common dandelion, Taraxacum officinale agg., pesticide residues, fungicides, vineyards, wild edible plants, food safety, risk assessment
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 17 str.
• Numbering: Vol. 14, iss. 4, art. 684
• PID: 20.500.12556/RUL-167397
• UDC: 633:615.9
• ISSN on article: 2304-8158
• DOI: 10.3390/foods14040684
• COBISS.SI-ID: 226680067
• Publication date in RUL: 19.02.2025

Record is a part of a journal

• Title: Foods
• Shortened title: Foods
• Publisher: MDPI
• ISSN: 2304-8158
• COBISS.SI-ID: 512252472

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: navadni regrat, ostanki pesticidov, fungicidi, vinogradi, divje užitne rastline, varnost hrane, ocena tveganja