Free app that diagnosed my tomato disease from a photo

Joined
Aug 22, 2026
Messages
3
Reaction score
0
Location
Washington
Country
United States
Hey fellow gardeners My tomato plants were struggling last month with yellowing leaves and I couldn't figure out what was wrong. I found this free app called Chlora that lets you take a photo of the affected leaf and it identifies the disease and gives you treatment steps. It actually saved my harvest
I'm not affiliated with them, just wanted to share since it really helped me. Has anyone else tried plant diagnostic apps? Would love to hear your experience
 

Meadowlark

You never know unless you grow 🤠
Moderator
Joined
Feb 5, 2019
Messages
7,024
Reaction score
7,433
Location
East Texas
Hardiness Zone
old zone 8b/new zone 9a
Country
United States
So, what "disease" did it identify and what treatment steps did it give? Post the photo here.
 

Martin Mikulcik

Rain makes corn
Full Access Member
Joined
Jan 3, 2026
Messages
570
Reaction score
537
Location
Missouri
Hardiness Zone
5b
Country
United States
Hey fellow gardeners My tomato plants were struggling last month with yellowing leaves and I couldn't figure out what was wrong. I found this free app called Chlora that lets you take a photo of the affected leaf and it identifies the disease and gives you treatment steps. It actually saved my harvest
I'm not affiliated with them, just wanted to share since it really helped me. Has anyone else tried plant diagnostic apps? Would love to hear your experience
What did it tell you to do? It might just have greened up a little after the hottest part of the summer faded and you got rain. Or it said something generic like fertilizer and you growing in peat moss so yeah.

There's few people competent to judge what you're asking from just a picture, i don't believe ai can do more than get lucky at this stage
 
Joined
Aug 22, 2026
Messages
3
Reaction score
0
Location
Washington
Country
United States
Thanks for asking, the app identified it as Late Blight and what impressed me was it explained the likely causes specific to my situation like wet foliage and overhead watering, then gave me a 7-day recovery plan with practical steps to save the plant. I've attached screenshots showing the diagnosis and recovery plan - the plant has stopped deteriorating and is showing new healthy growth after following these steps for about a week. Has anyone else dealt with Late Blight in humid conditions?
 

Attachments

  • Chlora diagnosis 1.jpeg
    Chlora diagnosis 1.jpeg
    99.5 KB · Views: 17
  • 1787405031771.png
    1787405031771.png
    536.8 KB · Views: 23
Joined
Aug 22, 2026
Messages
3
Reaction score
0
Location
Washington
Country
United States
What did it tell you to do? It might just have greened up a little after the hottest part of the summer faded and you got rain. Or it said something generic like fertilizer and you growing in peat moss so yeah.

There's few people competent to judge what you're asking from just a picture, i don't believe ai can do more than get lucky at this stage
Fair skepticism, to answer your question it specifically told me to prune the lower affected leaves, switch to watering only at the base early morning (not overhead) add straw mulch to prevent soil splash, and apply copper fungicide every 7-10 days.

I'll admit I was doubtful too, but the difference was it didn't just say "add fertilizer" it explained why my plant got sick (wet foliage + poor air circulation in my specific setup) and gave me a day by day recovery plan.

You're right that it could've been the weather, but my other tomato plants in the same conditions didn't recover - only this one did after I followed those specific steps.

I'm not saying it's perfect, but it gave me more actionable advice than the generic "could be this or that" answers I was getting everywhere else. Happy to keep you posted on whether the plant fully recovers or if it was just luck
 

Martin Mikulcik

Rain makes corn
Full Access Member
Joined
Jan 3, 2026
Messages
570
Reaction score
537
Location
Missouri
Hardiness Zone
5b
Country
United States
Can we see a before and after?
The picture you provided isn't late blight and looks frankly more like ai slop. The square showing the affected area is a shadow, background looks generated

And late blight isn't really even cured as much as managed and thats with fungicides. It gave you preventative advice you probably should have been doing anyway for a disease you don't have. Well really youre trying to sell a product...
 

Meadowlark

You never know unless you grow 🤠
Moderator
Joined
Feb 5, 2019
Messages
7,024
Reaction score
7,433
Location
East Texas
Hardiness Zone
old zone 8b/new zone 9a
Country
United States
... it gave me more actionable advice than the generic "could be this or that" answers I was getting everywhere else.
The truth is it could be this or that or nothing at all.

That's one of my biggest complaints about the current state of AI plant diagnosis and ID. It too often does not allow for the very real possibility that it is incorrect.

Action based on incorrect knowledge can often be worse than no action at all.

As a tool it has great possibilities, but those possibilities simply have not been realized as yet, IMO.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

No members online now.

Forum statistics

Threads
30,246
Messages
294,030
Members
16,246
Latest member
glnqcqtg3

Latest Threads

Top