Barbara Thuerig

Dr. Barbara Thuerig

orcid

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
10 March 2022 in Agronomy
Verified
Journal Article
Open access
PDF file
LTLucius Tamm
Lucius Tamm
BTBarbara Thuerig
Barbara Thuerig
SAStoilko Apostolov
Stoilko Apostolov
HBHugh Blogg
Hugh Blogg
EBEsmeralda Borgo
Esmeralda Borgo
JHJoelle Herforth-Rahmé
Joelle Herforth-Rahmé
The reduction of copper-based plant-protection products with the final aim of phasing out has a high priority in European policy, as well as in organic agriculture. Our survey aims at providing an overview of the current use of these products in European organic agriculture and the need for alternatives to allow policymakers to develop strategies for a complete phasing out. Due to a lack of centralized databases on pesticide use, our survey combines expert knowledge on permitted and real copper use per crop and country, with statistics on organic area. In the 12 surveyed countries (Belgium, Bulgaria, Denmark, Estonia, France, Germany, Hungary, Italy, Norway, Spain, Switzerland, and the UK), we calculated that approximately 3258 t copper metal per year is consumed by organic agriculture, equaling to 52% of the permitted annual dosage. This amount is split between olives (1263 t y−1, 39%), grapevine (990 t y−1, 30%), and almonds (317 t y−1, 10%), followed by other crops with much smaller annual uses (<80 t y−1). In 56% of the allowed cases (countries × crops), farmers use less than half of the allowed amount, and in 27%, they use less than a quarter. At the time being, completely abandoning copper fungicides would lead to high yield losses in many crops. To successfully reduce or avoid copper use, all preventive strategies have to be fully implemented, breeding programs need to be intensified, and several affordable alternative products need to be brought to the market.

1 February 2006 in European Journal of Plant Pathology
Verified
Journal Article
Closed access
PDF file
BTBarbara Thuerig
Barbara Thuerig
ABAndres Binder
Andres Binder
TBThomas Boller
Thomas Boller
UGUrs Guyer
Urs Guyer
SJSonia Jiménez
Sonia Jiménez
LTLucius Tamm
Lucius Tamm

14 September 2017 in Pest Management Science
Verified
Journal Article
Closed access
PDF file
BTBarbara Thuerig
Barbara Thuerig
EJEmily E James
Emily E James
HSHans‐Jakob Schärer
Hans‐Jakob Schärer
MLMoses Langat
Moses Langat
DMDulcie A Mulholland
Dulcie A Mulholland
LTLucius Tamm
Lucius Tamm

30 November 2015 in Pest Management Science
Verified
Journal Article
Closed access
PDF file
BTBarbara Thuerig
Barbara Thuerig
JRJustine Ramseyer
Justine Ramseyer
MHMatthias Hamburger
Matthias Hamburger
TOThomas Oberhänsli
Thomas Oberhänsli
OPOlivier Potterat
Olivier Potterat
LTLucius Tamm
Lucius Tamm

1 December 2018 in Crop Protection
Verified
Journal Article
Closed access
BTBarbara Thuerig
Barbara Thuerig
JRJustine Ramseyer
Justine Ramseyer
MHMatthias Hamburger
Matthias Hamburger
MLMathias Ludwig
Mathias Ludwig
TOThomas Oberhänsli
Thomas Oberhänsli
LTLucius Tamm
Lucius Tamm

8 March 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
KVKorinna Varga
Korinna Varga
JFJudit Fehér
Judit Fehér
BTBence Trugly
Bence Trugly
Dóra DrexlerDóra Drexler
Dóra Drexler
FLFlorian Leiber
Florian Leiber
LTLucius Tamm
Lucius Tamm
Although input use in organic agriculture is strictly regulated, and significantly less contentious inputs are applied in organic than in conventional farming systems, copper, mineral oil, external nutrient input, anthelmintics, antibiotics and vitamins are still commonly used among organic farmers in the EU, partly due to the scarce availability of alternative products and the difficulty of implementing preventive strategies. Moreover, besides the direction set by the European Commission’s organic regulation, only a handful of policy instruments exist at national levels to reduce the use of these contentious inputs. The purpose of this paper is to discuss the results of the RELACS EU-funded project about the current use of copper, mineral oils, external nutrient inputs, anthelmintics, antibiotics and vitamins in organic farming in the EU. The paper is based on six internal reports developed in RELACS which relied on international surveys, in-depth interviews, multiple case study methods, database-based calculations, secondary data sources, plus a survey independent from the reports to map existing policy instruments and voluntary initiatives in the EU aiming to reduce the use of the six input categories. As a result, the paper gives a comprehensive overview of the current consumption of the six contentious inputs within the organic sector, highlighting potential alternative strategies in the pipeline, available preventive measures and the willingness of farmers towards adopting these solutions. It also informs about specific policy instruments already in force, as well as about ongoing voluntary initiatives to reduce contentious inputs. Due to the current dependence of organic farming systems on the six categories of contentious inputs, any sudden phase-out or ban on their usage would do more harm than good to the organic sector. Therefore, gradual, data-driven reduction measures are needed, which require significant further investments in targeted research, and in policy support measures, with the active involvement of agricultural stakeholders.