So typically do great with tomatoes. However this year I seem to be having some problems.
Pictures 1-3 is a Roma tomato. Seemed to be doing great and then had yellowing leaves which I pruned off (hopefully wasn't over zealous). Have used neem oil mixture.




The remaining photos are all of my beefmaster plant. Started getting leaves with black spots, again pruned. I have never really pruned tomatoes before so hoping didn't cause more damage. Have used neem oil a few times. Problem seems to be continuing. Tonight I noticed what I believe is either white flies or aphids so sprayed down the plant with water. The pic is of some still there, ugh.
Would that alone cause the problem?
Appears some of my other tomato plants may slightly be having similiar problems. I hope I don't lose out this year

Or is it I have too much time on my hands so looking closer than should, lol

Any help would be great

Hi. That's bacterial leaf spot.
What you can do right now? First thing is to avoid wetting the plants to stop the spread of the disease. Second thing, destroy all cuttings from those plants, and when you'll pull them from the ground, do exactly the same.

Now the part nobody likes to hear: neem oil = snake oil. Neem is just a modestly effective insecticide: in spite of what many sellers claim it won't affect fungi and bacteria. Right now you can manage the disease with a copper-based fungicide (IE Bordeaux mixture), which is still an extremely effective fungicide, but don't expect miracles. It will slow the spread of the disease and allow the plants to finish their productive cycle.
Unaffected plants must be treated with copper every fortnight as a preventive measure, not just against leaf spot but a host of other diseases such as Early blight: this should be started while they are still being hardened and continued until the final harvest.

ElPolloDiablo

Thank you so much for your response. I had looked at bacterial leaf spot, but I swear I am always second guessing myself.
So I should cut all affected leaves even if strips the plant down quite a bit? or just the worse ones and use the fungicide treatment as you indicated.
I will definitely go and get that today and start using immediately.

Thanks again

Avanhoesen said:ElPolloDiablo

Thank you so much for your response. I had looked at bacterial leaf spot, but I swear I am always second guessing myself.
So I should cut all affected leaves even if strips the plant down quite a bit? or just the worse ones and use the fungicide treatment as you indicated.
I will definitely go and get that today and start using immediately.

Thanks again :)

You can do without removing the affected leaves, but if you do be careful to wash your hands and your tools afterwards.
On grown plants you may want to remove all leaves under the first grape of tomatos: Xanthomonas sp (the cause of bacterial leaf spot) is chiefly spread by water splashes and thrives in the humid, shady conditions you find at the bottom of the plant.
And as I always say: Gardeners, keep your secateurs sharp and your Bordeaux mixture ready. Copper-based fungicides are the one cure that should never miss from any garden because they are so useful. It's a close toss up between it and lime sulfur, but copper is just too useful to do without.

Popping in here. What copper based fungicide would you recommend?

dlbailey said:Popping in here. What copper based fungicide would you recommend?

Anything in water-soluble granules because it lasts a lifestime if kept in a dry spot. I presently have a bag of ready-made Bordeaux mixture made by Sumitomo but it could really be any brand. Avoid liquid copper sulfate concentrates because they'll go stone hard in under a year.