Fungal disease
Early blight / Alternaria
How to recognise it
Brown spots with concentric rings, starting on older leaves.
What helps
Remove lower leaves, mulch against splashing, rotate crops.
Often a care issue is behind it (watering, light, placement) – the care check in the app helps narrow it down.
Not sure it's this?
LeafChecker compares your photo with every disease and pest on our list and tells you honestly how sure it is. No sign-up, no subscription.
Check a photo – freeTypical organisms: Alternaria solani, Alternaria alternata, Alternaria brassicicola