watermelon - Knowledgebase Question

Jacksonville, Fl
Avatar for kaygfox
Question by kaygfox
October 27, 2010
My watermelons were growing nicely then suddenly two turned black and shriveled up. What do you think it is and what can I do? Thanks, Jacksonville

Answer from NGA
October 27, 2010
Watermelon fruit is affected by blossom end rot just as tomato fruit can be. This condition occurs on watermelon fruit if the plant loses excessive moisture through an unusually dry period. The inability of the plant?s roots to keep up with water loss by the plant results in desiccation and blackening of the blossom end of the fruit, which will quickly spread and cause the entire fruit to rot. You can help prevent blossom end rot by maintaining a consistent and adequate moisture level. A thick mulch over the soil around the plant will help conserve moisture by slowing evaporation. I'd prune away the affected fruit and wait for new fruit to develop. Good luck with your watermelons!

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