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!

Thank you for reporting this comment. Undo

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
Thank you for reporting this comment. Undo

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
Thank you for reporting this comment. Undo
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
Sign Up to comment
More Discussions
What's a Native?
I've been watching Gardening Australia lately and it...
Michael AKA Leekle2ManE - Zone 9a - Lady Lake, F
Tomato advice
First year growing tomatoes in Jax area. My question...
Mystery tree
Has small silvery/gray leaves, almost furry looking......
New Floridian gardener
Im a snowbird who is loving gardening all year long...
Questions on Coffee Grounds
A friend of mine told me her neighbor suggested she...
Sponsored Products
Progress Lighting Recessed Lighting 6 in. Pro-Optic Black Recessed Baffle Trim
$65.52 | Home Depot
Marble Vessel Sink
MR Direct Sinks and Faucets
Bow Matte Black 16-Inch One Light Pendant with Honey/Brown Flair Tiffany Glass
$235.40 | Bellacor
Napa Black Bedroom 5-piece Set
Conrad Black Leather Sectional - Left Chaise
Zuri Furniture
Black Case Pillar Lantern
$128.99 | zulily
Black Quilted Jewelry Box
$425.00 | Horchow
Glomar Track Lighting 4 ft. Black Lighting Track HD-TR121
$17.99 | Home Depot
© 2015 Houzz Inc. Houzz® The new way to design your home™