Second-year gardener here and first time poster-- happy for any direction, criticism, or even duplicate marking.
Location: Chicago Area, United States
Plants: Tomatoes (cherry and plum variants-- Tumbling Tom Red, Super Sweet 100, and Roma)
Planted In: Municipally-sourced compost. We planted several plants in this soil last year and had great production. We pulled the plants at the end of last season and dropped them in the municipal yard waste collection (which becomes the municipal compost). We did not lay any new soil this year and just planted in the same soil from last year.
We planted twelve tomato plants this year; a few weeks later I noticed that one was failing to thrive, and was quite smaller than all the others, and its leaves were discolored and shriveling. I pulled out the plant and replaced it with a new one from the local farmers market. Now, a month later, the new plant is suffering from a similar issue, and it appears to be spreading to our new, rather large and mature tomato plants.
Here's the plants:
Here's two pictures of affected leaves:
Here's a stem, which also appears to be browning:
I tried clipping away the affected bits, but I began to worry perhaps that wasn't the appropriate approach. Google lens gave several possibilities, and one was a fungus where the recommended treatment was "discard all plants". However, several of these plants are quite large and already have tomatoes that are starting to turn red- maybe it would be worth getting through the end of the year with what we have and then figure out how to prevent this next season?
Two additional potential bits of context:
- For what it is worth, it does not seem to be spreading a pepper plant in an immediately adjacent pot where several leaves are touching, which might indicate a tomato-specific issue...
- The Chicago summer hasn't been too terribly hot thus far, but we've had some rather wet periods with a lot of days of consecutive, heavy rainfall.
So, my questions are:
- What is affecting these tomatoes?
- What is the best course of action? Can I prevent the spread somehow and finish the season with these plants? Or is my best course of action just yanking them all now?
- How do I prevent this from happening next year? Soil PH treatment? Crop rotation? Fumigation?
Any direction is appreciated; I can provide more info or images if requested. Thanks!