Septoria leaf spot on tomatoes, pics further down

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Not really sure what to think b/c everything else is doing well. Does leaf spot just take over like that normally? Should I just pull the plants?

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I've followed every preventative measure possible and still deal with fungal issues. When it stays wet constantly it makes it really difficult. I've been able to mitigate it for the most part. You don't really need to pull the plants unless the entire plant is affected. Prune the bad leaves off and burn them, or bag them and put them in the trash. Don't compost them. Spray the remaining healthy part of the plant with fungicide.

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Also curious about next year when I plant again. The area I have them is really only other area I can do a garden. I've been spraying with Bayer Natria insect and fungicide but it's not doing anything. Maybe in January of next year spray all around area with a better fungicide prior to planting so it won't come back?

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Daconil is probably the home garderners best friend when it comes to fungicide. I've also used liquid copper fungicide with some success. I've read that copper is actually better on bacterial spot. So I spray both. Most fungicides are preventatives and don't actually kill the fungus. So I'm not sure if spraying the area will do much. Look into soil solarization. I will be doing this to my garden within the coming weeks cause all of my plants are just about done. Unless someone has some other info, it's the only thing I have found in my research that will actually kill soilborne fungal pathogens.

Also, rotating your crops should also help mitigate disease.

Thanks for response. Buddy of mine who grows them every year said his have been struggling also. I used to plant years back straight in the ground but live in the city now and went with raised bed.

My understanding is that bleach will kill fungus, but it takes a lot of bleach. I would be worried about altering the soil pH with too much bleach. It'll also probably kill all of the beneficial organisms.

Putting in new dirt could also bring in new problems. So if you do that, treat the dirt after.

Where did you buy the plants? Those Bonnie brand from Walmart etc. are notorious for spotted wilt. They come from Florida. Louisiana variety from a local nursery tend to do much better.

Also- rain is what it is and not much you can do about it other than spray and hope.

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Where did you buy the plants? Those Bonnie brand from Walmart etc. are notorious for spotted wilt.

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I have this exact problem with my tomatoes, and sure enough they were Bonnie brand.

I'll be starting from seed next year though so hopefully won't be an issue.

I used to get the Bonnie plants too. I've been starting everything from seed the last couple years and have had fewer problems. There's a couple of other benefits to that. It's cheaper, and you can sell or give away your extras. I usually give my extras to family and friends.

Yep, had the same issue, didn't relize what was going on until late. Sprayed with copper and it fixed it but most of the leaves rotted off. Have a ton of tomatoes tuning ripe now so don't kill the plants but they aren't going to keep making I'm sure.

I was having same issue. I noticed that at night, even when it wasn't raining my plants would stay wet due to dew/condensation. I moved my containers to a table by my AC units so they they would get hot air blown on them every time the AC came on. The leaf spot went away and I didn't need to spray at all. Plants ended up doing really well.

Got the same ones from lowes that did the same thing...lesson lernt