Bayer gets first OK for thiencarbazone-methyl
Date:09-02-2008
Romania has granted the first registration for Bayer CropScience’s maize herbicide, thiencarbazone-methyl. Bayer will market it and the “newly developed” safener, cyprosulfamide, in combination with another herbicide. Adengo 465 SC (thiencarbazone-methyl 90 g/litre + isofluxatole 225 g/litre+ cyprosulfamide 150 g/litre) will enter the market in 2009.
Thiencarbazone-methyl is a broad-spectrum sulfonyl-amino-carbonyl triazolinone herbicide. It controls grasses and broadleaf weeds in maize, displaying a good balance between foliar and residual action, the company says. The active ingredient is reliable against weeds such as velvetleaf (Abutilon theophrasti) and various pink weed species, and can be applied at either pre- or early post-emergence stages, it adds. The safener, cyprosulfamide, accelerates the decomposition of the herbicide in the maize plant, increasing crop tolerance. Adengo is recommended for pre-emergence use at 0.35-0.4 litre/ha and post-emergence use at 0.3-0.35 litre/ha.
Bayer expects registrations in major maize growing European countries, the US and Argentina next year. The UK is acting as EU rapporteur member state. The company forecasts peak annual sales of more than €100 million ($147.5 million). Thiencarbazone-ethyl is Bayer’s third new herbicide to reach “market readiness” since 2007, following the introduction of the maize herbicide, tembotrione, and the small-grain cereal herbicide, pyrasulfotole, the company points out.