Cyflufenamid is a specific powdery mildew fungicide which has been developed in the UK for the cereal market. Its different mode of action offers growers alternative chemistry against powdery mildew. It will now be developed for other crops. The UK cereal market is the third largest market in Western Europe with nearly 3,500,000 ha. Of^his area, winter wheat is the largest UK cereal crop with over 2,200,000 ha grown. Consequently, cereal disease control is crucial for profitable production. Powdery mildew infestations in cereals are caused by the obligate parasitic fungus Blumeria graminis (formerly Erisyphe) which has specialised forms largely restricted to its own particular host, i.e. wheat, barley and oats. A new fungicide, cyflufenamid, from Nippon Soda, has been developed and registered for its use on cereals against powdery mildew in the UK.
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