Australia approved Sumitomo Chemical’s fungicide Intuity

The Australian Pesticides and Veterinary Medicines Authority (APVMA) has approved Sumitomo Chemical’s fungicide Intuity (250 g/L mandestrobin) for the control of blossom blight and brown rot in stone fruit. Intuity will be applied at a rate of 120 mL/100 L. A maximum of two applications are allowed on stone fruit per season. 

 

The active constituent mandestrobin is a racemic mixture of two stereoisomers. It has been demonstrated that only the R-isomer has significant fungicidal activity.

 

Mandestrobin, a new active to the Australian market, is a strobilurin fungicide, belonging to the sub-class methoxy-acetamide. Mandestrobin is a Quinone outside Inhibitor (QoI) of fungal pathogens. The Fungicide Resistance Action Committee (FRAC), a specialist technical group of CropLife International, has designated mandestrobin as a Group 11 fungicide. 

 

The maximum number of applications that may be applied per season is two, with a minimum interval of 14 days between applications.

 

Health Canada’s Pest Management Regulatory Agency (PMRA) has granted full registration for mandestrobin and four associated end-use products for the management of various fungal diseases in canola and other oilseed crops, corn, grape, legume vegetables, strawberry and other low growing berries, as well as turfgrass. 

 

The European Commission has authorised the use of mandestrobin in the European Union for the management of sclerotinia rot in winter oilseed (canola).