Leaf Disease w/pics

[georgiacracker]

Can anybody ID this? Showed up this morning. I have already bagged and pulled plant. Thanks for looking!

[georgiacracker]

Here is a better leaf pic.

Have you checked for Spider Mites? The leaves look like they are covered with webs, which is what severe mite damage appears like.

[georgiacracker]

Just in case, I hit everything with a good dose of liquid Sevin...

[b54red]

It looks like it could be TSWV. If it is then you did the right thing removing it.

[st3v3]

Hi,

I've never seen a confirmed case of TSWV , but i have *exactly* the same thing on ONE of my tomatoes; I only see the symptoms on a couple of leaves, and none of them have turned yellow. It appeared the morning after the last little cool snap we had, and i thought it may just be cold damage. The damage on my plant has not changed noticeably for over a week.

If it is NOT cold damage, and is in fact a disease...

( From the Tomato Problem Solver at: http://aggie-horticulture.tamu.edu/p...problemsolver/ )

This is TSWV:



and this is Bacterial Speck:


I was thinking this looked more like Bacterial Speck, but it sure would be great if someone with more experiance than I have would chime in and give a definite answer!

Thanks in advance...
-------------
Later EDIT:

After a little bit more research, i found this picture, and believe this IS TSWV.
http://www.lsuagcenter.com/en/lawn_g...Wilt+Virus.htm the picture on that link looks pretty close to the picture you posted. I'll be pulling up my plant as soon as i can

[Dewayne mater]

Those purple spots on picture 4 are worrisome for TSWV, but I'm not an expert on this at all. Given the size of the plant, if you can get that diagnosis confirmed, I'd yank the plant. I won't make it and it could be the source for an insect carrying it to other plants.

Dewayne mater

[georgiacracker]

I went ahead this am and bagged and pulled it. I have 64 others and couldn't take a chance. The spots are more maroon than purple if that matters though. Everything else looks good at this point.

[b54red]

I have seen TSWV for years and it usually manifests itself with a rusty or brown color but I have seen it go all the way to black looking. No matter the results are always the same. I assume it shows up a bit different because of the variety of tomato, the weather or maybe there is more than one strain of TSWV.

[georgiacracker]

So what should I expect with my other plants? I am crashing into the learning curve here...

[b54red]

There is really nothing practical to do. The insects that infected your plant probably did it several weeks ago and are now long gone. If you don't see any more symptoms on other plants then just be thankful for the single loss. With TSWV I just keep a close eye out for a major swarm of thrips showing up. If I see them in abundance I will spray everything with Permetrin and hope to kill them or drive them away before too many plants get infected. Usually they will infect plants randomly and they are usually worse about the time the plants start getting a good fruit set in the spring; but they can appear anytime. I always pull up and discard young plants that are infected but I will leave a large plant with developed fruit and take my chances. I have luckily never had a problem with the plant spreading the infection. Often all the tomatoes that are going to get TSWV will show symptoms over 7 to 10 days and then I may or may not see it again the rest of the year.

[georgiacracker]

Originally Posted by b54red

There is really nothing practical to do. The insects that infected your plant probably did it several weeks ago and are now long gone. If you don't see any more symptoms on other plants then just be thankful for the single loss. With TSWV I just keep a close eye out for a major swarm of thrips showing up. If I see them in abundance I will spray everything with Permetrin and hope to kill them or drive them away before too many plants get infected. Usually they will infect plants randomly and they are usually worse about the time the plants start getting a good fruit set in the spring; but they can appear anytime. I always pull up and discard young plants that are infected but I will leave a large plant with developed fruit and take my chances. I have luckily never had a problem with the plant spreading the infection. Often all the tomatoes that are going to get TSWV will show symptoms over 7 to 10 days and then I may or may not see it again the rest of the year.

Thanks for the info!

[chancethegardener]

I am almost positive that this TSWV. This virus took a lot of my plants away. There is an existing thread regarding this disease here: http://www.tomatoville.com/showthread.php?t=22293.

[brengolio]

b54red.......... you've seem to seen it all.......... this is a pic of my spudakees leaves......... based on what st3v3 posted this would be bacterial speck? If it is what would be the best way to control it? Thanks, brengolio

[b54red]

brengolio, are those photos taken of leaves off the very lowest part of the plant? If they are it could just be flea beetles eating little spots on the underside of the leaves. I get some of them every year on some of my tomatoes and peppers. I usually just clip off all of my lowest leaf stems that are near the ground and put in a fairly heavy mulch. It doesn't really look like bacterial speck to me; but it is hard to be sure from the photos. If it is flea beetles you can spray with a pesticide but you have to get the undersides of the leaves and the ground under the plant for it to be effective. If it is bacterial speck it will spread quickly and it is very hard to completely control. I usually spray with a dilute bleach solution very late in the day and follow with preventative sprays of Daconil a bit later.