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Grey mold

Botrytis rot or grey mold is caused by the necrotrophic fungus Botrytis cinerea. It infects and kills host tissue and extracts nutrients from the dead cells.

Botrytis cinerea affects a wide range of plants including many fruit and vegetable crops. It is economically important on soft fruits such as strawberries. This pathogen pre-harvest losses primarily due to infections of fruit and flowers, especially under humid conditions when daytime temperatures are moderate to warm. Botrytis is also a post-harvest disease because it also grows at refrigerated temperatures.

In greenhouse horticulture, Botrytis cinerea is also known to cause considerable damage in tomatoes; affecting stems, flowers and fruits.

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