Tomatoes....what causes .....

pattico_gwJuly 7, 2004

I think it is "blossom end rott"...

I have several plants in my garden...but I had a few plants left over and dropped them in a large container. the container garden had 6 tomatoes on it. One was nice and red , not real big....but big enough that I couldn't wait...I picked it today....and the bottom was missing and all black.

What causes that and how do I stop it?

Or can I.


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Baumer(z5 Ia)

I'm not sure if this is the cause. But when I don't mulch my tomatoes -this happens. Something about rain hitting soil and bouncing back on the fruit.

    Bookmark   July 7, 2004 at 10:01PM
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Emandden(z5 IL)

I've noticed this happens when we have a dry spell followed by rain. I agree that the mulch helps considerably with this. Maybe it is a soil borne organism like Baumer suggests, I never thought of that...I thought the mulch was helping conserve moisture.

    Bookmark   July 8, 2004 at 1:42PM
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Blossom end rot is caused by a deficency of calcium in the soil... Here's a link that will tell you more than you ever wanted to know about it. ;)

IA Z5a

Here is a link that might be useful: Blossom end rot

    Bookmark   July 8, 2004 at 2:01PM
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buttercupia(zone4 IA)

It can also be caused by uneven watering of the plant, and is sometimes a problem in container grown plants, but it is more common on the first tomatoes the plant produces, the later ones should be ok unless there is a real calcium deficiency or water problem.

    Bookmark   July 8, 2004 at 7:49PM
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lindac(Iowa Z 5/4)

The CAUSE of Blossom End Rot is calcium deficiency....but that deficiency is most often caused by insufficient water or fluctuations in soil moisture. Potted tomatoes are very suceptable.
Linda C

    Bookmark   July 8, 2004 at 10:52PM
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