The present invention relates to methods for the protection of harvested fruits, cutflowers or vegetables against decay caused by certain storage diseases or disorders expressed in storage conditions, which fruits, cutflowers or vegetables have been treated pre-harvest with dithiino-tetracarboximides of formula (I). In particular the invention relates to the application of dithiino-tetracarboximides of formula (I) before harvest to protect harvested fruit, cutflowers or vegetables against phytopathogenic fungi.
