Syngenta to withdraw fungicides, including Cherokee

Agrochemicals giant Syngenta is to withdraw some fungicides, including the popular cereals product Cherokee, as they no longer pass the relevant ecological risk assessments.

Products containing azoles propiconazole and cyproconazole plus multisite chlorothalonil, such as Cherokee, will not longer be sold after the end of 2018, while cyproconazole and chlorothalonil mixes, such as Bravo Xtra, will not be sold after end-June 2019.

The individual actives can still be used, but in these combination the Chemicals Regulation Division has evaluated the combined toxicology and concluded it is not adequate to pass the necessary risk assessment.

Products such as Cherokee are commonly used as early T0 fungicides in winter wheat, and so Syngenta suggests an alternative could be Amistar Opti (strobilurin azoxystrobin + chlorothalonil).

The cyproconazole-chlorothalonil mixes are used on pulses such as beans, and the longer sell-out period has been agreed because of the lack of alternative fungicides.

See also: Barley breeders have BYDV solution to neonic ban

Timeline

The existing registrations of the following products will be revoked as of 30 June, and the following use-up periods will apply.

Use-up periods

Product End of sell out period Grower use up period 

Cherokee, Apache (propiconazole+cyproconazole+chlorothalonil

Six months to 31 December 2018 12 months to 31 December 2019

Alto Elite, San 703, Bravo Xtra and Octolan (cyproconazole+chlorothalonil)

12 months to 30 June 2019 12 months to 30 June 2020

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