Estimation of plant protection product application dates for environmental fate modeling based on phenological stages of crops

2010 ◽  
Vol 45 (7) ◽  
pp. 639-647 ◽  
Author(s):  
Dirk Gericke ◽  
Jiri Nekovar ◽  
Claudia Hörold
2021 ◽  
Vol 55 (5) ◽  
pp. 3001-3008
Author(s):  
Zélie Venel ◽  
Hervé Tabuteau ◽  
Alice Pradel ◽  
Pierre-Yves Pascal ◽  
Bruno Grassl ◽  
...  

2021 ◽  
Vol 19 (1) ◽  
pp. 1251-1258
Author(s):  
Bartosz Piechowicz ◽  
Marika Kobielska ◽  
Anna Koziorowska ◽  
Magdalena Podbielska ◽  
Ewa Szpyrka ◽  
...  

Abstract Temperature has a significant influence on the action of pyrethroids, and their effect increases with decreasing ambient temperature. Using gas chromatography, we assessed the degradation rate of λ-cyhalothrin, active ingredients (AI) of Karate Zeon 050 CS from pyrethroid group, in bees incubated for 48 h under different temperature conditions. With RT-qPCR method, we studied expression levels of selected cytochrome P450 genes after exposure to the plant protection product (PPP). The half-life of λ-cyhalothrin decreased from 43.32 to 17.33 h in the temperature range of 21–31°C. In animals incubated at 16°C, the AI half-life was even shorter and amounted to 10.19 h. The increase in temperature increased the expression of Cyp9Q1, Cyp9Q2, and Cyp9Q3 in the group of control bees. We showed a two-fold statistically significant increase in gene expression after treatment with PPP bees. The obtained results indicate that honey bees are characterized by susceptibility to pyrethroids that vary depending on the ambient temperature. This may be due to the different expressions of genes responsible for the detoxification of these PPPs at different temperatures.


2019 ◽  
Vol 21 ◽  
pp. 243-272
Author(s):  
Olivia HAMLYN

AbstractIn recent years, pesticides have captured the attention of both policymakers and the general public. A particular focus has been the transparency of the EU-level procedure for approving active substances, spurred by controversies surrounding the active substance glyphosate. Active substances are the ingredient in pesticides with the pesticidal effect. Once an active substance is approved at EU level, the pesticide containing that active substance must be authorised by each Member State. For this purpose, the EU's 2009 Plant Protection Product Regulation divides Member States into three zones—Northern, Central, and Southern—within which, zonal rapporteur Member States evaluate applications for authorisation. National authorisation decisions are based on these zonal evaluations. This novel system governing pesticides is under-researched. Furthermore, unlike active substance approval, the transparency of pesticide authorisation escapes public and policy scrutiny. Drawing on empirical research conducted for the European Parliament, this article evaluates the transparency of the zonal pesticide authorisation procedure. It thus contributes to the literature on transparency a detailed exploration of transparency in a highly complex, decentred, and polycentric risk regulation regime. While it finds that the zonal pesticide authorisation procedure, generally speaking, does not operate transparently, it argues further that levels of transparency within the regime as a whole may vary significantly depending on multiple different factors. It introduces the concept of ‘chiaroscuro regulation’ to characterise and understand these varying levels of transparency across different elements of the regime and considers some of its implications.


2020 ◽  
pp. 1-17
Author(s):  
Alexander KOOF

For the protection of biodiversity, the German Federal Environmental Agency (UBA) pursues the goal of establishing compensation areas to balance unavoidable indirect effects on nature and the environment caused by the application of plant protection products. Whether there is a legal basis for this within either European Union or national law is one of the most debated and pressing issues currently in the authorisation procedure for plant protection products in Germany. The purpose of this article is to provide a comprehensive legal assessment of whether it is legally permissible to make plant protection product authorisations contingent to compensatory application provisions to protect biodiversity.


2015 ◽  
Vol 535 ◽  
pp. 150-159 ◽  
Author(s):  
Nicole Sani-Kast ◽  
Martin Scheringer ◽  
Danielle Slomberg ◽  
Jérôme Labille ◽  
Antonia Praetorius ◽  
...  

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