Why are my tomato leaves turning yellow?

As a tomato plant grows, it is often thought that it is in the plant’s nature for the lower leaves to turn yellow and die off. However, that is simply not true according to Joe Masabni, Ph.D.,T exas A&M AgriLife Extension Servicevegetable specialist in Dallas.

Masabni, an assistant professor in theDepartment of Horticulturein Texas A&M University’sCollege of Agriculture and Life Sciences, e…