27 May 2011

Potato blight programmes are being severely disrupted by strong winds preventing spray applications. With blight risk rising sharply in showery conditions, growers have the best chance of ensuring crops remain protected by using Revus when opportunities arise, advocates Tom Whitworth of Syngenta.

He warns the Syngenta BlightCast system has predicted high risk conditions with Full Smith periods over the Bank Holiday weekend across the South West and rising risk through South Wales and into the midlands. The threat for growers is being compounded by difficult spraying conditions. The Syngenta website’s Spray Window Forecast for the South West, for example, indicates a potential to spray on Friday, but nothing further except a two-hour slot early on Monday morning.

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