Black Spots On Tomatoes - Knowledgebase Question

Hortense, GA
Avatar for joyhal
Question by joyhal
May 1, 2000
I have 20 tomato plants in my garden. Half of them are in buckets, and half are in the ground. I have had one of each develop black spots on the the leaves and a few spots on the stems. I pulled up one of the plants that was starting to die, but, the other I left planted. Is there anything I can do to stop the spread of this on the individual plants and the spread to other plants. I use Miracle Grow for tomatos once every other week and water everyday. I almost always water in the morning and rarely get too much water on the leaves. I've seen on some of the questions in the "library" about spraying with a compost mixture. I don't have access to compost. Is there anything I can do? I would really appreciate it if you could help me identify what is on my plants and how to combat it. Thanks...

Answer from NGA
May 1, 2000

Those spots are either a fungal or bacterial disease. These are aggravated by frequent wetting. Since your tomatoes only need watering once or twice a week, I suggest you move toward that watering schedule.

As for the diseases, compost tea may help deter the disease from starting, but your County Extension Office (phone 912-462-5724) can probably recommend a more effective option since the disease already has a head start on your plants.

Thanks for the question. Please feel free to stop in again with another question any time we can help!

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