Agree. There is a condition called Physiological Tomato Leaf Roll (you can Google it) and it is caused by watering issues.

Having some sort of "schedule" for watering never works. You water when the plants and the soil need it, not on any schedule. So you could easily be over or under watering without knowing it.

The purpling of the leaves is due to phosphorus uptake issues, not potassium. It is often weather related when the plants are very young but as they grow it is usually an indication of either low phos in the soil (which is rare) or an inconsistent watering issue. I note your plants are not mulched. That would go a long way in stabilizing your soil moisture issues. And that is the goal stable soil moisture rather than the extremes.

Agree with pitch the damaged fruit.

Dave

Thanks wormgirl and Dave.

I will start watering only after checking the moisture levels. I water about 1x a week (until it gets warmer), as these tomatoes are planted deep (about 2 feet), but I will try a moisture level tool. Hopefully that will fix the leaves rolling.

I'm attaching 3 more pictures I took this evening of the plant with the potential blight. These pics are little more clear. I've never dealt with blight so I'm not sure if the browning is blight:

Any other ideas?

I'm sorry but I don't see any symptoms of blight (of any of the 3 kinds). Normally those symptoms would be quite obvious but in this case the leaves are currently so distorted that it is difficult to tell anything other than they appear to be drought damaged. If there is any symptoms of disease that aren't visible in the picture then the basic advice would be to remove any infected foliage and begin a regular spraying program with the fungicide of your choice. You might want to carefully explore the plants for signs of any pests too.

Hope that helps.

Dave

I wonder if the crispy leaf got broken near the stem? All stems around it look fine - wondering if some of this could just be a little accidental damage from jostling or wind, or like Dave suggested, a pest.

Originally you talk about tip burn so I suppose it might have gotten a bit much fertilizer? But I don't think Tomato Tone burns, does it? Any TT users please chime in.

Giggling that Dave would apologize for lack of blight :-) To me, that seems like good news. It's good to be observant, but sometimes a few leaves get damaged and it's no big deal. You could watch and wait a few days and see if anything spreads.

Jenn

Phew! Thank you Dave and Jenn!

I've been reading up on blight - it was like when you google random body pains and Google search tells you that you have some terminal illness and are going to die - and thought I might lose my entire garden to this blight (I have 35 tomato plants this year!)

I will monitor moisture levels for the next week or so as well.

Is there a good fungicide that you can recommend? I usually use Neem oil for aphids and such. I purchased Serenade today. Is that a good one?

Amrit

Looking at the leaf stems in the pictures that you added, they look brown to me and I wonder if it could be grey mold?

I hope not!

Linda

No,not grey mold.

Here's a link that will help a lot in determining tomato diseases but it often depends on where you garden, that is geographically, since not all diseases are present everywhere.

The most common tomato diseases world wide are the foliage diseases and the most common are:

Early Blight

Septoria Leaf Spot

the above two are fungal and the bacterial ones are

Bacterial Speck and Bacterial Spot/

The word blight is a general one and can refer to any of the foliage diseases and some even use it to describe a sick looking plant, which really isn't that helpful.

There are some good anti-fungals that one can use for the fungal foliage diseases, but not very effective products that can be used for the bacterial ones that are available to the home grower but are available to large scale commercial growers.

Below is the link I'm referring to:

://vegetablemdonline.ppath.cornellhttp.edu/DiagnosticKeys/TomWlt/TomWiltKey.html

And here's a Goggle search from which theabove was taken:

https://www.google.com/?gws_rd=ssl#q=Cornell+tomato+diseases

Hope the above helps,

Carolyn

Carolyn, thanks for that link. I'd seen some pages on Cornell's site before but not the main page. Great breakdown of all the various types of problems. Obviously I bookmarked it for future reference!

Amrit, you have 33 other tomatoes doing fine? That's good to hear. Keep watching these two plants and you can always pull out that cherry plant if you decide it may be diseased. You'll still have lots of 'maters to eat!

Carolyn, I second Jenn's thank you for that link! Very comprehesive and helpful.

Jenn - the other tomato plants are doing quite well, although they were planted a month after the two affected plants so they're still about 2 feet tall. These two affected ones are in a patch with 8 other plants. The rest are in different boxes, so hopefully whatever this browning is, will stay in this patch.

I'm going to vigilantly monitor the issue and if it grows, goodbye cherry!

akaur007, I use Copper Fungicide and I’m very happy.

Serenade is ok, but I prefer copper.

I spray weekly, or more often if it rains.

Keep in mind that fungicide is for PREVENTING, not TO CURE diseases, so I'd suggest to start ASAP.

If the disease hits, you could try Daconil.

Maybe you're lucky.

Well we had some surprise rain today, and now Im getting antsy. Maybe I should go buy Draconil. The browning is increasing a bit and top leaves are affected. I've been cutting off branches, but still shows up.

I took some more closeup pics of the leaves (Dave mentioned the leaves were distorted and hard to tell). Here they are:

Akaur, I am watching this thread carefully as I had this exact same thing on a Cherokee Purple last year. I slowed the progress somewhat with a fungicide but by the end of the season it had pretty much defoliated the plant. the closest thing on Cornell's disease identification was gray mold, but not all the symptoms of that were present. No fuzzy spores on the bottom of the leaves and it never affected the fruit. whole branches would turn brown, then black and die like in your pictures. Only other thing that came close on Cornell's site was drought distress, but I knew that wasn't the case either. I hope you find out what this is.

Jennie

Jennie, was it contagious to other tomatoes nearby? I'm thinking of uprooting it and planting it in a more isolated area - if not uprooting and throwing it away.

My leaves might have "fuzzy spores" or at least something white-greyish but it's not very obvious.

What fungicide did you use?

Akaur, I grow in containers and they are very close. I sprayed with Daconil weekly and it did keep the other plants healthy until late in the season. My other plants did get the same thing late in the season, but by removing the bad stems and leaves on the other plants they remained healthy. The spraying did not stop the progression of this disease n the Cherokee Purple.

Jennie