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Brown patches on tomato leaves
in Fruit & veg
Hello! New here, and new in the gardening world. I have a tomato plant growing in a pot and I noticed brown patches on the lower / older leaves. Overtime they appeared on more leaves. I'd appreciate it if you could tell me if it's a disease or what I should do to save the little plant!

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Where are they - a greenhouse or by a window or similar? It looks a very big pot, so is the plant big already?
I live in west central Scotland - not where that photo is...
It's obviously been brought on in very warm conditions to have fruits. I take it you aren't in the UK?
I live in west central Scotland - not where that photo is...
I'd say the pot's far too big, but it's probably best to leave it there now. I take it you have good drainage in the pot too?
It's possibly getting too hot at the window. Make sure it has some ventilation during the day, and you may even need a bit of shading for it in excessive heat, if you don't have anywhere else for it.
Definitely don't over water, and always water in at the foot of the main stem, never overhead. If you haven't done so already, give it a small feed. Once the first truss of fruits are set, that's the time to feed
Try not to over water it though.
I live in west central Scotland - not where that photo is...