Tomato Plant Diseases

Late blight on tomato

Tomato plant diseases can sometimes be hard to identify. Blossom-end rot is pretty obvious, but many of the fungal disease problems are hard to differentiate. Read the short descriptions below to see if your disease symptoms are similar. Follow links for in-depth descriptions, causes, and treatments. Photos are shown for many of the more common tomato plant diseases

In 2010 Seattle was cursed with below average summer temperatures (well, as far as tomato gardening is concerned) and then late blight attacked all the tomato plants in one of my three plots. Next year, I'll do some preventive spraying with copper fungicide. I did spray the plants in my other two plots and luckily they were spared. Now, if we could just get a little more sun....

Common Tomato Plant Diseases


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