Tomato Leaf Problem - Ask Extension
Hi there, Hope you can help me. What is this on my tomato leaves? See attached picture. Leaves are turning yellow with grey spots. Thank you for ...
Knowledgebase
Tomato Leaf Problem #877047
Asked July 12, 2024, 10:40 PM EDT
Hi there,
Hope you can help me.
What is this on my tomato leaves? See attached picture. Leaves are turning yellow with grey spots.
Thank you for your help!
Adams County Colorado
Expert Response
George,
Where on the plant are you seeing this issue? Is it on all of the leaves? Leaves at the bottom, or newer leaves? This looks as though it could either be a nutrient issue or some type of pathogen. If you could send a picture with the whole plant that could help!
Where on the plant are you seeing this issue? Is it on all of the leaves? Leaves at the bottom, or newer leaves? This looks as though it could either be a nutrient issue or some type of pathogen. If you could send a picture with the whole plant that could help!
Sure. Its kind of all over. Existing leaves.
Thank you, from that picture I'm wondering how frequently you are fertilizing your tomato. Containerized tomatoes need fertilizer more frequently than their in-ground counterparts as the nutrients "leech" through the soil with watering. There could be a deficiency in either nitrogen or potassium leading to that discoloration.
If the yellowing becomes more distinct on the lower leaves and you begin to see dead spots develop, remove those leaves as you may have early blight, a fungal issue, developing.
I hope that helps!
If the yellowing becomes more distinct on the lower leaves and you begin to see dead spots develop, remove those leaves as you may have early blight, a fungal issue, developing.
I hope that helps!
