What are the signs of plant disease?

What are the signs of plant disease?

Common signs of plant disease include yellowing leaves, wilting, spots, and stunted growth. What specific plant are you concerned about?

I have a tomato plant that looks sick. Its leaves are turning yellow.

Yellowing leaves on a tomato plant can indicate several issues, such as nutrient deficiency or disease. Have you noticed any spots or wilting?

Yes, there are some brown spots on the leaves too.

Brown spots could suggest a fungal infection or bacterial disease. It's important to check for pests as well. Have you seen any insects?

I haven't seen any insects, but the plant is also not growing well.

Poor growth combined with yellowing and brown spots could indicate a serious issue. I recommend isolating the plant and consulting a local expert for treatment options.