Tomato plant stems turning black?

stephens02159(9b-Tampa Florida)April 11, 2013

Has anyone dealt with this before? i keep having issues with it, i removed all limbs affected and applied organocide. Not sure if it had anything to do with me appling a insecticidal soap last night to rid of a caterpiller problom i had on my peas. Yesterday i saw a few stems with this problem but i just cut out like 20-30 stems covered in it. NEED HELP!

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It's possibly sooty mold which doesn't actually harm the plant except to block photosynthesis by shading the leaf from sunlight.
I'm guessing at what it is because it is hard to determine from looking at a picture.


    Bookmark   April 12, 2013 at 10:33AM
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Doesn't look like sooty mold. Looks to be in the veins of the plant. I doubt it is caused by insecticidial soap.

    Bookmark   April 13, 2013 at 10:16AM
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carolb_w_fl(zone 9/10)

You do not say what variety of tomato this is - might it be normal for the variety? The leaves do not look too distorted or diseased...

    Bookmark   April 13, 2013 at 10:43AM
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