my tomato leaves are turnming yellow. - Knowledgebase Question

annandale, Vi
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Question by kimga100
July 14, 2009
what am I doing wrong? My tomato leaves are turning yellow starting at the bottom. I'm wateriong every morning and every evening. I think I've fertilized plenty. I may have missed the watering once or twice. THe plants are about 4 to 5 feet tall now. Not too many fruits as I had expected.


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Answer from NGA
July 14, 2009
Tomato plants naturally lose their oldest (lowest) leaves as they become unproductive. As long as the rest of the plant looks healthy and is putting out new growth, it's nothing to be concerned about. Just trim off the yellowing leaves. However, tomatoes are subject to a number of diseases, including late blight. This will also cause small, dark, "watersoaked" patches on the leaves and the tomatoes will have greenish grayish spots on them which then turn brown and hard. If there are no watersoaked spots on the leaves, it's probably nothing to worry about. However, you may be overwatering which can also cause yellowing leaves. Watering twice a day should not be necessary unless they are growing in a container which dries out quickly. In the ground, your plants need about one inch of water per week. You can deeply soak the soil, usually twice a week in hot weather. Try this and see if your plants don't improve. Hope so!

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