Why do the leaves on tomato plants near the ground turn yellow?

At this time of year most tomatoes have finished fruiting, those yellowing leaves need to be removed to allow any Tomatoes left to have as much light as possible to ripen.

Might be Tomato Mosaic. Plant should be destroyed as it can spread to other plants. Tobacco on hands can start it off strangely enough. Or could be too much watering at one go, moderate watering about twice a week in dry hot weather, and a little shade while the leaves are still tender. Feed often, but not too strong.

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Usually fungus. You need to plant tomatoes where the sun will dry the overnight dew quickly each day. Don't water at night (water in the morning). Try to water the soil and not the leaves.

Ask your nursery for a fungicide (or if something else is causing yellow leaf in your area). They will know and guide you.

Best set to pull off the dead/yellow leaves to limit cross contamination and spread of the fungus/mold.

https://pallensmith.com/2015/04/23/nine-common-tomato-problems/

More answers to the question

http://www.saferbrand.com/articles/common-tomato-plant-problems-how-to-fix-them

This article should help

Take off the lower, smaller leaves at the stem. Plant the tomato deeper up to about an inch below the larger leaves. It is good for tomato plants to be this deep, you will get more and larger fruit.

Hi,

Sounds like it could be Nitrogen defficiency ..
"Nitrogen deficiency:Very slow growth of plants, followed by progressive pale green color moving from tip and young leaves back to more mature leaves. Leaves are small, thin, perhaps with purple veins. Stems eventually brown and dry off. Flower buds yellow and drop. Apply N immediately"All you ever wanted to know about tomatoes but were too afraid to ask: http://home.earthlink.net/~shelly.johnson/tomato.html

:)

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