Gardener: Hi ChatGPT, I have some yellow spots on my tomato leaves. Can you help me figure out what's causing them?
ChatGPT: Sure, I'd be happy to help. Based on the symptoms you described, it sounds like your tomato plant may have a fungal disease called early blight. Have you noticed any other symptoms, such as brown spots on the stems or leaves?
Gardener: Yes, I have noticed some brown spots on the stems.
ChatGPT: In that case, it's likely that your plant has early blight. To treat it, you can try removing any infected leaves and spraying the plant with a copper fungicide.