Why are my tomato plant leaves turning yellowish with black spots?
For past 3 years my tomato plant leaves start turning yellowish with little black spots at the bottom of the plant and progress upward until plant stops producing. I have sprayed with eight formula. Could this be over,watering, insects,???Please help.
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sounds like fungal disease Fungicides can help if applied early enough and thoroughly. They wonāt kill the fungus but they will prevent the spreading of the disease which is certain to occur. Be sure to follow product instructions. The best control for all fungal disease is good cultural practice.
Here are some very important cultural practices to reduce tomato disease in your garden:
Hello Meda, check out this link, it sounds like you have septoria, the link will provide the info you need to lessen the effect,
https://www.canr.msu.edu/news/septoria_leaf_spot_on_tomatoes_preventing_spots_before_your_eyes
That's a fungal disease. It's very common in warm, humid climates, like my state of Virginia. I would move my plants to another bed next year as the fungal spores can live in the soil and splash up onto new leaves in the following years. Yes, over watering can cause it, but so can just plain old rain and humidity. Here's more info to help: https://njaes.rutgers.edu/fs547/