|title says it all, i have a large garden of tomato plants all thriving. but on three of them, all the same type i have yellow leaves, they are already producing tomatoes. help!|
|If only the lower, oldest leaves are yellowing, it's perfectly natural. The plant is dropping the leaves that have already served their purposes. If the entire plant, including new leaves is turning yellow, it could indicate a fungal disease such as fusarium. I can't positively diagnose the problem without seeing the plants. But, here's a diagnostic key you can use: http://vegetablemdonline.ppath...
Copy and paste the address into your browser and then click on the picture that looks most like the problem you're seeing. Hope this helps!