1

This is the fourth year I've been growing tomatoes in my garden, but this is the first time I see this pest affecting my plants. The plants have black, brown spots on yellowing leaves. On some of the plants (see first two photos), the pest has affected also the stem and/or branches.

I've done some research, but I'm not sure whether this is Septoria lycopersici or Alternaria solani

I'm growing a mix of stored-bought and grown-from-seeds plants. The plants have been outside for more than a month now, and receive daily watering. They are growing in pots. We've had a month of fairly warm, dry weather (25-30 Celsius, or around 80 F).

Any help is much appreciated!

Many thanks!

enter image description here enter image description here enter image description here enter image description here enter image description here

  • 1
    Hate to say this but it looks like blight - someone with more knowledge can confirm though – Shambhala Jun 19 '18 at 13:25
  • Thanks @Shambhala. That's what I'm afraid of as well... – Domi Jun 20 '18 at 8:14

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.