The Q&A Archives: Roma Tomatoes Moldy

Question: Last year we had a problem with mold forming on the base of our Roma tomatoes. Were we watering them too much after they began fruiting?

Answer: Sounds like Blossom-end rot, especially if the problem begins as a water-soaked spot which enlarges and turns dark brown and leathery. This problem is due to a calcium deficiency, often brought on by an uneven water supply. Try to keep the soil evenly moist by using a mulch and watering when needed.

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