Potato leaves and stems are very sensitive to frost ... The first signs are small, dark spots, often on the edges of leaves. If the weather is wet, a white mould surrounds these spots, usually on the ...

The outside is a dull, dusky brown, with some spots. Large bruises, long sprouts, moldy areas, breaks in dry skin, bore holes, are all signs of bad sweet potatoes. Texture: Sweet potatoes should ...

A fungal disease that affects plant tissues has been detected in Prince Edward Island potato crops. Black dot disease — named for the fine black spots that appear on infected roots, stems and leaves — ...