Yellow Leaves on Tomato Plants Home › Forums › Organic-Gardening Questions › Pests and Diseases › Yellow Leaves on Tomato Plants This topic contains 0 replies, has 1 voice, and was last updated by Anonymous 8 years, 8 months ago. Viewing 1 post (of 1 total) Author Posts July 5, 2008 at 4:49 pm #28128 Anonymous The lower leaves on my tomato plants are speckled, turning yellow and dying. I wondered if I was watering them too much (once a day), but other people have told me that their plants are doing the same. Any words of wisdom out there? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.