Controlling docks (Rumex obtusifolius L.) using herbicides applied to seedling or established grassland

Bijeenkomst: EGF2015
Auteur: O’Donovan T., Casey I.A. and Humphreys J.
ISBN: 978-9090-289-61-8
Jaar van uitgifte: 2015
Producttype: Paper
Docks are a widespread problem associated with intensively managed grassland. The experimental site was reseeded with perennial ryegrass in October 2009. A plot experiment (plots of 5m × 10m) was laid down in a randomised complete block design with nine treatments and eight replicates. Four treatments were each of four herbicides: (1) Linuron + 2,4-DB + MCPA; (2) MCPA + 2,4-DB; (3) CMPP; (4) Fluroxypyr + Triclopyr) applied at the seedling stage (SSH) in April 2010 and another four treatments (5) Amidosulfuron; (6) thifensulfuron; (7) Fluroxypyr + Triclopyr, and (8) Aminopyralid + Fluroxypyr) applied to established grassland (EGH) in April 2012. The ninth was an untreated control. Dock numbers and herbage production were measured over five years (2010-2014). SSH gave more (P