Hi there. New to this forum and wanted some help..... i recently purchased from the garden centre some potato tubers ready for planting for xmas potatoes. I planted them and they grew lovely lush growth. Have earthed them up and all seemed ok.... but all of a sudden the top growth has turned brown and wilted. I have cut it back to below ground level and some are beginning to re-sprout. Is this blight and will the top growth come back and more importantly, will the potatoes grow?