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green rot

muffa verde (I)
pourriture verte (F)
green mould (GB)

A form of bunch rot by the mold of the subgenus Penicillium expansum is caused. This is particularly encouraged by warm, damp weather. He prefers ripe berries that are already through Botrytis are infected, a seed break by the real one mildew have or by Schad birds, Wasp damage or mechanical damage (e.g. due to hail). The ripe berries turn greenish gray and get a (initially white, later blue-green) pustular spore system. At the slightest movement of air, clouds of spores rise. Even the smallest amounts cause the intense unpleasant taste Schimmel taste, Therefore, the infested berries must be separated out. The so-called pink rot, in which the mushroom network is colored whitish to pink, is very similar in its cause and effect. This is caused by the mold Trichothecium roseum caused. Both mushrooms are difficult to control, since they only appear as a secondary phenomenon when they mature. This often occurs together with green rot acid rot on. False aromas that get into the wine due to rotten grapes are eliminated activated carbon fought. See also under Vine enemies,

Green rot - Penicillium expansum on grapes / spores on pear

Left: By Bauer Karl - Own work, CC BY 3.0 at , Link
Right: By HJ Larsen, - insectimages , CC BY 3.0 , Link

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