Australia to approve Syngenta’s sedaxane

The Australian Pesticides and Veterinary Medicines Authority (APVMA) has proposed to approve Syngenta’s fungicide sedaxane as a new active ingredient. The APVMA also proposed to approve Syngenta’s fungicide seed treatment product Vibrance which containing sedaxane, the other two active ingredients are difenoconazole and metalaxyl-M. Vibrance is for use on barley, oats, triticale and wheat seed for control or suppression of various seed- and soil-borne diseases. Vibrance has obtained US approval in June this year.

Sedaxane  is  a  carboxamide  fungicide  belonging  to  the  sub-class  of  the pyrazole-carboxamides,  which  is  a  racemic mixture of  two diastereomers (trans and cis  isomers) with  the  typical  trans:cis ratio  is 6:1,  the  trans  isomer  is an active isomer while the cis isomer is a non-active isomer. It will be used to control snow mould (Microdocium nivale), smut (Ustilago tritici) and stink bunt (Tilletia caries) in wheat; loose smut  (Ustilago nuda)  in barley, head smut  (Sphacelotheka  reiliana)  in maize, Asian soya bean  rust  (Phakopsora pachyrhizi) in soya, and the suppression of Rhizoctonia root rot.

The public comment on this decesion will be closed on 23 October.

Source: APVMA