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- Title
Biological activity of sedaxane - a novel broad-spectrum fungicide for seed treatment.
- Authors
Zeun, Ronald; Scalliet, Gabriel; Oostendorp, Michael
- Abstract
Background Sedaxane is a new broad-spectrum seed treatment fungicide developed by Syngenta Crop Protection for control of seed- and soil-borne diseases in a broad range of crops. Its physicochemical properties and activity spectrum have been optimised for use as a seed treatment providing both local and systemic protection of the seed and roots of target crops. Results Sedaxane inhibits respiration by binding to the succinate dehydrogenase complex in the fungal mitochondrium. Its activity spectrum covers seed-borne fungi such as Ustilago nuda, Tilletia caries, Monographella nivalis and Pyrenophora graminea, as well as the soil-borne fungi Rhizoctonia solani, R. cerealis and Typhula incarnata. Under greenhouse conditions, sedaxane showed high levels and consistent protection against U. nuda, P. graminea and Rhizoctonia spp. Under field conditions, efficacy against Rhizoctonia spp. resulted in increased yield compared with the untreated check. Efficacy against snow mould has been shown under very high disease pressure conditions. The combination of sedaxane plus fludioxonil against snow mould can provide resistance management for sustainable use. Conclusions The broad spectrum and high level of activity in combination with excellent crop tolerance allow the use of sedaxane as a seed treatment in a wide variety of crops. It is a potential tool for precautionary resistance management when combined with other fungicides, especially against pathogens showing a potential for resistance development, such as M. nivalis.
- Subjects
SEED treatment; FUNGICIDES; SUCCINATE dehydrogenase; FUNGAL mitochondria; SEED-borne phytopathogens; SOILBORNE plant pathogens; FLUDIOXONIL; SYNGENTA Crop Protection Inc.
- Publication
Pest Management Science, 2013, Vol 69, Issue 4, p527
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.3405