Help me ID this black stuff

[Vinny]

*sigh* Its only on my stump of the world and hasn't spread to anything else. Fungus? Iv'e been treating with Exel Lg and Actinovate every couple weeks. I was hoping to avoid fungus this year. I realize these aren't the best pics. Its black starts in spots then eventually it fills the leaf and kills it. It dries withers then dies. Ive also seen spots on the stem in places and this stuff is even on brand new growth which kinda leads me to believe it might be bacterial.

*edit
pics didnt post, trying to figure that out

[Vinny]

This should work

[rsg2001]

It's unclear from your photos... hard to see the damage. Can you get a sharper picture?

[amideutch]

Vinny, how much EXEL LG are you using per gallon of water? Ami

[b54red]

It is very hard to tell what is going on from your photos. If it is any kind of fungus then an application of a diluted bleach solution should kill most of the disease with one treatment. Use 8 ounces of regular strength bleach added to a full gallon of water and spray with a fine mist all parts of the plant late in the day. If it is something like TSWV then there is nothing you can do for it. I have already applied this treatment once to my tomatoes because of Early Blight despite regular applications of Daconil. It is looking like the foliage diseases may be worse than usual this year. I usually don't start seeing them til May but the lack of a real winter seems to have brought some of them out early.

Try taking pictures when the sun is not so bright so there is not so much glare on the leaves. I have found that I usually get much better pictures late in the day or early in the morning when the sun is at more of an angle.

[kurt]

http://vegetablemdonline.ppath.corne..._Bacterial.htm Used this site before,very good across the board pics.Go to photo gallery,click on first pic of bacterial canker.

[RayR]

You can check out the Florida Tomato Scouting Guide for diagnosis clues too.

[lapk78]

Vinny,

I'm having something similar to what you're experiencing. I started a thread a while ago. Check it out and see if our diseases look the same. There are quite a few opinions offered in that thread.

http://www.tomatoville.com/showthread.php?t=22309

-Lyle

[lapk78]

b54red,

Regarding your bleach spray, do you use it as a preventative treatment, or only when symptoms occur? Is it meant only to treat fungus? How often do you spray with it? I'm still hoping MY problem is not TSWV. http://www.tomatoville.com/showthread.php?t=22309

Sorry Vinny, I swear I'm not trying to hijack your thread.

-Lyle

[b54red]

Originally Posted by lapk78

b54red,

Regarding your bleach spray, do you use it as a preventative treatment, or only when symptoms occur? Is it meant only to treat fungus? How often do you spray with it? I'm still hoping MY problem is not TSWV. http://www.tomatoville.com/showthread.php?t=22309

Sorry Vinny, I swear I'm not trying to hijack your thread.

-Lyle

Lyle. it is used only to kill diseases that are present. It really doesn't have much preventative value except that it will stop many diseases from spreading by killing the source. Bleach oxidizes in minutes after using it so there is no residual fungal killer after a few minutes. It has no affect on TSWV or any other systemic disease like fusarium once it gets into the plant. I have had some success on Late Blight if it is sprayed soon enough and often enough to stop the spores from spreading but it will not save the already well infected plants. It has worked best on mildews, Septoria Leaf Spot, Early Blight and Gray Mold for me. I still use Daconil as a preventative every week but sometimes these things get started despite using the fungicide and once they get going the fungicide is much less effective.

[Vinny]

Well try this pic I know there is some glare but I took a bunch of pictures with different setting but they always come out blurry, Im bad at closeups of plants apparently.
I hacked it all off yesterday and here it is again back with a vengeance. Whatever it is its fast spreading. There was no sign of it when I was done pruning yesterday *sigh* Its sucks because I only have one Stump of the world and it has baby tomatoes =(

[Vinny]

Originally Posted by amideutch

Vinny, how much EXEL LG are you using per gallon of water? Ami

2 teaspoons I think. Is that to much? I cant see it being a problem since no other plants are effected by this stuff. I have some leafs that look yellow or black around the edges but that's been pretty minimal. Iv'e been real happy with the other plants this season.

[Vinny]

Originally Posted by lapk78

Vinny,

I'm having something similar to what you're experiencing. I started a thread a while ago. Check it out and see if our diseases look the same. There are quite a few opinions offered in that thread.

http://www.tomatoville.com/showthread.php?t=22309

-Lyle

Spots on mine are larger than yours and cover more of the leaf. Whatever this is is also very aggressive. I wonder if I should just get rid of it, I certainly don't want it to spread. though it seems like it would have already if it were going to. if its a bacterial thing I don't see how it would spread, since my plants are all in smart pots they don't share the same soil.

[b54red]

Vinny, I hate to say this but it looks a lot like TSWV. If the plant is healthy enough sometimes I get decent production from a plant that already has some tomatoes even after the TSWV gets started. I know best practices say to remove the infected plant and that is what I still do if the plant is small and not loaded with fruit in which case I leave it and give it a chance. If the infection seems to be on one of the main stems then I will remove that stem and then give the plant a little fertilizer and see if it can soldier through til the fruit is ready. It usually doesn't work but sometimes it does. I also spray the plant with a mild contact poison to kill any pests that might spread the disease.

I am expecting TSWV to start appearing soon on some of my plants. It usually makes itself known shortly after the plants get a good bit of fruit set on them and then a couple of more times through the season. I usually lose a fair number of plants to it each year; but I always have a couple that produce despite having it.

[Vinny]

Originally Posted by b54red

Vinny, I hate to say this but it looks a lot like TSWV. If the plant is healthy enough sometimes I get decent production from a plant that already has some tomatoes even after the TSWV gets started. I know best practices say to remove the infected plant and that is what I still do if the plant is small and not loaded with fruit in which case I leave it and give it a chance. If the infection seems to be on one of the main stems then I will remove that stem and then give the plant a little fertilizer and see if it can soldier through til the fruit is ready. It usually doesn't work but sometimes it does. I also spray the plant with a mild contact poison to kill any pests that might spread the disease.

I am expecting TSWV to start appearing soon on some of my plants. It usually makes itself known shortly after the plants get a good bit of fruit set on them and then a couple of more times through the season. I usually lose a fair number of plants to it each year; but I always have a couple that produce despite having it.

Well most of the pics of TSWV seem to show "bronzing" and there is no real sign of that. Its just black spots on very green leafs.
**edit : you could be right, I have seen other pics of TSWV with no bronzing and better safe than sorry. I believe I'll just move it away from the others. Moved it a good 30 feet away from my other plants and sprayed it with Sven (I don't like spraying for bugs because it kills the good bugs to but its pretty far away from the other plants). Sucks to lose my stump but better that than losing more plants. Try stump again next year I guess if it bites the dust.