Test Your Knowledge - Tomatoes
Test your disease identification skills by trying to distinguish between these commonly confused diseases
This leaf has some dramatic symptoms. There’s a lot of yellowing around the lesions. Could it be...?
These are early blight lesions. The concentric rings in the lesions are diagnostic. There is often a lot of leaf yellowing associated with early blight.
Bacterial diseases can also cause leaf yellowing, but bacterial speck lesions are much smaller and lack the pattern of concentric rings.