Why Are the Leaves on My Tomato Plants Turning Yellow?

Answer

The leaves on your tomato plants may be turning yellow due to insufficient nutrients from the soil, insufficient sunshine or due to a general lack of Nitrogen in the soil. Bacterial or fungal infections such as Alternaria alternata could also cause yellowing of the leaves.
Q&A Related to "Why Are the Leaves on My Tomato Plants Turning..."
Healthy tomato plants have deep-green leaves. Some common tomato pests that can turn leaves yellow are psyllids, flea beetles, tomato hornworms, whiteflies and aphids. Determine if
http://www.ehow.com/facts_5572047_tomato-plants-le...
Not enough Magnesium in your soil. Magnesium ions are essential in chlorophyll, the 'pigment' that gives leaves their green coloration and thus also their light absorbing properties
http://wiki.answers.com/Q/Why_do_tomato_plant_leav...
Wow, some of the answers you were given scared me. I have tomato plants and one has yellow leaves on the bottom, but I just ignore it as I know the others are healthier, and I figure
https://answers.yahoo.com/question/index?qid=20100...
you dont say if the leaves are going yellow at the botom or all of the leaves? if it is the bottom leaves only then there is not a problem, as the plant grows bigger the newer leaves
http://uk.answers.yahoo.com/question/index?qid=200...
1 Additional Answer
Ask.com Answer for: why are the leaves on my tomato plants turning yellow
Why Are My Tomato Plants' Leaves Turning Yellow?
Though tomatoes (Lycopersicon esculentum) are grown for their fruit, not their foliage, yellowing leaves should cause concern. Usually grown as annuals, tomato plants are susceptible to many diseases. Some harm only leaves, but others threaten the fruit.... More »
Difficulty: Easy
Source: www.ehow.com
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