Brazil Suspends 63 Fungicides Targeting Asian Soybean Rust

The Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA) has suspended authorization of 63 fungicides used to control Asian rust (Phakopsora pachyrhizi) in soybean, as resistance of the fungus to fungicides has spread widely in the country, according to a Chemlinked report.

The measure was a follow-up of MAPA’s agronomic reevaluation of 117 soybean fungicides, which required registrants to submit scientific evidence to confirm efficacy of their products against biological targets within 60 days. The 63 suspended fungicides were registered by 26 companies: 57 of them contain triazoles and 12 contain strobilurins. See the list here.

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