10.5073/JKA.2016.452.050
Meinlschmidt, Ewa
Ewa
Meinlschmidt
Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, Nossen, Deutschland
Tümmler, Christine
Christine
Tümmler
Landesamt für Ländliche Entwicklung, Landwirtschaft und Flurneuordnung, Zossen, Deutschland
Ewert, Katrin
Katrin
Ewert
Thüringer Landesanstalt für Landwirtschaft, Dornburg-Camburg, Deutschland
Schmalstieg, Heiko
Heiko
Schmalstieg
Pflanzenschutzamt Berlin, Deutschland
Bergmann, Elke
Elke
Bergmann
Landesanstalt für Landwirtschaft, Forsten und Gartenbau, Bernburg, Deutschland
Verbreitung und effektive Kontrolle von Acker-Fuchsschwanz (<i>Alopecurus myosuroides</i>) im Hinblick auf die Resistenzentwicklung – Auswertung der Ringversuche der Bundesländer Brandenburg, Hessen, Sachsen, Sachsen-Anhalt und Thüringen von 2000 bis 2014
Spread and control of blackgrass (<i>Alopecurus myosuroides</i>) according to an increasing occurrence of resistance - Evaluation of field trials in the federal states Brandenburg, Hessen, Saxony, Saxony-Anhalt and Thuringia in the years 2000 - 2014
Julius Kühn-Institut
2016
Article
anti-resistance management
frequency of weeds
herbicide efficacy
herbicide resistance
HRAC group
Anti-Resistenzstrategie
Herbizidresistenz
Herbizidwirksamkeit
HRAC-Gruppe
Stetigkeit der Unkräuter
Meinlschmidt, Ewa
Ewa
Meinlschmidt
ewa.meinlschmidt@smul.sachsen.de
2016-02-23
de
978-3-95547-028-9
10.5073/jka.2016.452.000
2199-921X
Julius-Kühn-Archiv
2016
452
p. 371-384
application/pdf
Creative Commons
Julius-Kühn-Archiv 452
Julius-Kühn-Archiv 452
An increasing occurrence of blackgrass (Alopecurus myosuroides) with high densities has been reported for Brandenburg, Hessen, Saxony-Anhalt, Saxony and Thuringia. In recent years, an increasing resistance to blackgrass especially to ALS inhibitors and partially to ACCase inhibitors has been reported for some eastern federal states and Hessen, too. It was determined to what extent dicotyledonous weeds are associated with blackgrass. The efficacy of different herbicide applications was tested in field trials between 2000 and 2014. A total of 191 trials have been included in the analysis of blackgrass. Using the HRAC-classification of herbicides tested, combinations of herbicides were used which might contribute to solve problems specifically linked to the detected resistance situation of the site. The study aimed to identify the right timing of the herbicide applications as well as applications as single or serial treatments and the use of herbicide at reduced doses according to the intensity of blackgrass. In autumn, single applications of soil active herbicides were not effective enough, especially at a high density of more than 500 heads of blackgrass per m2. The mixtures of soil active herbicides with leave active herbicides applied in autumn achieved very good control. The herbicide sequences were more effective than single applications. In order to counteract further spread of herbicide resistance, the right choice of the mode of action and highly efficacious herbicide treatments are the methods of choice, of course in addition to nonchemical controlling measures such as delayed autumn drilling, ploughing and crop rotation.