potato blight

Anton · « **on:** May 06, 2007, 23:39 »

Dear gardeners,

On the subject of copper sprays for potatoes (preventive) when is the best time to usethem for new potatoes and the main crop and in what quantity and how many applications?

Anton

WG. · « **Reply #1 on:** May 06, 2007, 23:44 »

After 2 days of Smith Periods : http://www.blightwatch.co.uk/content/bw-Smith.asp

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potato blight

WG.