Answer: If the pumpkins sit on wet soil for extended periods of time they can develop a fungal disease which will shorten their storage life. If you can wipe the mildew off the pumpkin, do so (use 1 part household bleach diluted with 9 parts tap water). To avoid this in the future, set the ripening fruit on a wooden board, a piece of tarpaper or an old shingle. The board, shingle or tarpaper won't become waterlogged and will provide a dry place for your pumpkin to rest.
Q&A Library Searching Tips