Difficulty Identifying

[Courtgreenhous]

These are some pictures from a 2 year old Roma Grande cutting. The first one I grew to about 42feet, but succumbed to a pathogen that did not kill it. Rather, I witnessed something odd. The disease killed off the leaf sets when the tomato turned red at the same time I would have pruned the leaf set anyhow so I let it go on. It ended up producing in 38-105 degrees F so I kept cloning it.

Can ANYONE without a reasonable doubt identify this disease. I am having trouble coming to terms if it's late blight. It seems to behave differently. I see late blight generating signs from the stem outward down the leaf set. This appears to start at the end of the leaf set and move inward. I will go mad scientist on this thing if I have to rid it of disease.

This disease DID NOT affect the fruit.

This disease is seen progressing from the bottom up.

[RayR]

Not Late Blight. Can't make out any details because the picture is fuzzy, but could very well be Early Blight since it is progressing from the bottom leaves up. If the lesions have concentric rings, then early blight would most likely be it.

[Courtgreenhous]

Originally Posted by RayR

Not Late Blight. Can't make out any details because the picture is fuzzy, but could very well be Early Blight since it is progressing from the bottom leaves up. If the lesions have concentric rings, then early blight would most likely be it.

This is a better shot. I am leaning towards Septoria. What do you think?

[RayR]

if it's Septoria, it will have a tiny tan spot in the center, if it's Early Blight look for concentric rings. Use a magnifying glass to get a closer look. If it's either or something else, I don't know I can't make out any details from the photo.

[Courtgreenhous]

I'll take a magnifying glass. I have a microscope too. Whatever it is went right through Eagle20EW, but was slowed down by a bleach water solution. Also, Serenade-Bacillius Subtilis keeps it in check. I don't spray my plants with Eagle20EW. This was just a test.