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Control of brome grasses ( Bromus L. spp.) in winter cereals

Summary
The complete article is written in German
The spread of brome grasses, in particular of barren brome grass (Bromus sterilis L.), caused among others by ploughless tillage, requires an optimal use of herbicides in winter cereals. In a study with 20 field trials, performed between 2000 and 2005, treatments with application sequences in autumn and spring turned out to be the most effective control measures. In autumn the herbicides Herold (a.i. flufenacet + diflufenican) or Atlantis (a.i. mesosulfuron + iodosulfuron) can be used. At spring treatment with Attribut (a.i. propoxycarbazone) or Monitor (a.i. sulfosulfuron) the effectiveness can be improved clearly by splitting application in mixture with a suitable adjuvant. With this herbicide strategy yield losses between 30 and 60 % can be prevented. Because of limited selectivity these optimal control measures can employed only in winter wheat.

german version

Keywords/Stichworte:Brome grasses; barren brome; rye brome; Bromus sterilis; Bromus secalinus ; weed control; herbicide; yield increase; selectivity; application sequence; splitting application; adjuvants

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Autor:K. GEHRING, S. THYSSEN, T. FESTNER, Bayerische Landesanstalt für Landwirtschaft, Institut für Pflanzenschutz, Lange Point 10, D-85354 Freising, E-Mail: Pflanzenschutz@LfL.bayern.de

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