ELUMIS® – A modern component for simplified broad-leaved and grass weed control in maize

Abstract

ELUMIS® is a new liquid maize herbicide containing mesotrione for control of annual millets and dicotyledonous weeds and nicosulfuron for control of grasses. Field testing on efficacy and crop tolerance of ELUMIS in maize was conducted in Europe in the maritime, south-eastern and north-eastern EPPO climate zone from 2007 to 2010. Essential innovation as compared to common tankmixtures of the sole ingredients of ELUMIS is the formulation technology for easy handling: The oil dispersion is the first formulation combining a triketone and a sulfonylurea. Uptake studies using 14C-labelled active ingredients revealed for both mesotrione and nicosulfuron a faster foliar uptake from the ELUMIS formulation than from single a. i. formulations or a tankmixture. 1.5 l/ha ELUMIS applied from early to late post-emergence control a broad spectrum of broadleaved weeds and grasses including perennials such as Lolium perenne and Agropyron repens. Comparative tests on various maize varieties revealed good crop tolerance in nearly all maize hybrids currently grown in Central Europe. In Central Europe on loamy soils with a pH above 6 the potential for a rotational crop injury is neglible for all main crops sensitive to mesotrione. ELUMIS primarily offers foliar activity; if required it can be combined with residual partners such as S-metolachlor (in DUAL® GOLD or GARDO® GOLD) or terbuthylazine (also in GARDO® GOLD) to achieve apart from foliar also a satisfactory duration of activity on those grasses and dicotyledonous weeds germinating after application. Apart from this, tankmixtures of ELUMIS and other herbicides for broadleaved weed control enhance the reliability of efficacy on difficult to control species, e. g. Polygonum aviculare.

Keywords

• Herbizid
• Mesotrione
• Nicosulfuron
• Öldispersion
• herbicide
• mesotrione
• nicosulfuron
• oil dispersion