Garden Plant diseases symptoms and remedies.
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Page 4
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Chocolate spot
(leaves discoloured)
Plants affected:
Broad beans
Symptoms:
Small dak brown spots on leaves and stems. They may merge.
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Treatment:
Seldom necessary but encourage strong growth by liming and adding a potasch fertiliser. If the disease is severe spray with a copper fungicide soon after the leaves appear.
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Quince leaf blight
(leaves discoloured)
Plants affected:
Quinces.
Symptoms: Small irregular spots, at first the spots are red, then black/brown. The leaves turn brown and fall prematurely.
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Treatment: Rake up and burn the diseased leaves. Cut out dead shoots and spray with Bordeaux mixture or copper as the first leaves unfold. Repeat once or twice.
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Hellebore leaf blotch
(leaves discoloured)
Plants affected:
Hellebores.
Symptoms: Brown Black blotches with concentric rings on the leaves which wither and die.
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Treatment: Remove and burn diseased parts and spray the plants regularly with a copper fungicide such as Bordeaux mixture.
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Willow anthracnose
(leaves discoloured)
Plants affected:
Weeping willows.
Symptoms:
Small brown spots on the leaves.
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Treatment: Spray small trees as the leaves unfold with a copper fungicide such as Bordeaux mixture and repeat at least twice in the summer. Burn any leaves that have fallen.
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White Blister
(leaves discoloured)
Plants affected:
Aubrietas,honesty,horseradish,brassicas,scorzoneras and salsify.
Symptoms:
Blisters or swellings full of white powdery spores and often glistening. Developes on the leaves or sometimes on the stems.
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Treatment:
Cut off and burn diseased leaves.
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