![]() ![]() your potatoes!), showing as dark decay under the skin. Once blight affects the plant stem, it will rapidly spread to the root system and tubers (ie. If the weather conditions are especially wet, look for a fine white mould surrounding the dark rings on the underside of the leaves. It first shows as brown spots which rapidly widen to form larger dark patches, at which point the leaves will shrivel and collapse. Recognising blight on potato plants can be tricky as it usually strikes when the plants are beginning to die off and the foliage is discolouring. ![]() It stands to reason that tomatoes grown in a greenhouse are less likely to be affected if blight is present. Blight first shows on the foliage of the plants in the form of dark brown spots and if left unchecked, the disease will spread to the potato tubers and tomato fruits and your crop will be ruined. It’s a serious disease, caused by a fungus-like organism whose spores are spread by the wind and is especially prevalent during warm, damp weather following a dry, sunny spell. The very word is enough to strike fear into the heart of the most seasoned of vegetable gardeners! In case you don’t know already, blight is a disease which affects potatoes and tomatoes and is therefore referred to as ‘potato and tomato blight’, sometimes ‘late blight’ as it tends to strike later in the summer. Blight - the dread of vegetable gardeners Posted By:īlight. ![]()
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