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Q&A – The bottom leaves on my tomato are yellow with no spots. Why?

Question:
The bottom leaves of my tomato plants are turning yellow. It doesn’t have any spots on the leaves, they are just yellow.

Answer: 
This does not sound like a fungus or disease problem. It could be a fertilizer deficiency. A lack of nitrogen will make the leaves turn yellow, usually starting at the oldest and lowest. It could also be that the soil is too wet where they are growing.

Related Videos:
Sidedressing Vegetables

Related Resources:
Growing tomatoes in home gardens
Growing Home Garden Tomatoes
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  • Home
  • Watch
    • TV Schedule
    • Full Episodes Online
    • How-to and Informational
    • Questions and Answers
    • This Week in the Garden
    • Garden Notes
  • Garden Topic Collections
    • Apple Trees: How-to and Information
    • Peach Trees: How-to and Information
    • Tomatoes: How-to and Information
    • Square Foot Garden Blog
  • Resources
    • Soil Testing
    • Extension Publications
    • Gardening Resources
    • Blogs
    • Organic Gardening
    • Articles
    • Privacy
  • Guests
  • Contact Us
    • Ask a Gardening Gardening Question
  • Search