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Diseases: Leaf top necrosis

Abnormalities of non parsitaire or unknown cause

In the field as well as in the greenhouse, the tissue in the top of the leaves changes its colour. First into dark green, then it becomes watery and later weak and light brown. The symptoms extend with zones of 1-4 millimetres wide. The extension can stop, but can also continue till the leaf base, through which the leaf becomes droopy/weak.