Australia to approve Syngenta’s Seguris Flexi fungicide
Date:03-28-2018
The Australian Pesticides and Veterinary Medicines Authority (APVMA ) is considering an application for the registration of Syngenta’s Seguris Flexi Fungicide containing the new active constituent isopyrazam. The product is to be registered for the control of black spot and powdery mildew in apples and black spot in pears.
Isopyrazam is a new carboxamide broad-spectrum foliar fungicide with an inhibitory mode of action on the enzyme succinate dehydrogenase (complex II) within the fungal mitochondrial respiration chain. This active substance belongs to the chemical class of ortho-substituted phenyl amides (OPAs). There is some evidence to suggest that isopyrazam can be translocated in the vascular system of plants, however isopyrazam is not considered highly systemic. It is predominantly protectant in its effect on the pathogen. For resistance management purposes it is a Group 7 succinate dehydrogenase inhibitor designated as such by the Fungicide Resistance Action Committee (FRAC).
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