Stem Symptoms
1. Scroll down to browse images of possible stem symptoms.
2. Click the symptom photo that best matches your issue then follow the instructions for next steps.


Stem spots with noticeable rings

Possible Diseases
Early Blight



Lesions appear as small water soaked spots

Possible Diseases
Late Blight



Small round spots

Possible Diseases
Septoria Leaf Spot



Brown circle spots

Possible Diseases
Bacterial Spot



Small round dark spots

Possible Diseases
Bacterial Speck



Yellowish Streaks

Possible Diseases
Bacterial Canker



Large brown/dark brown rot

Possible Diseases
Southern Blight



Dark brown discoloration

Possible Diseases
Phytophthora Root Rot



Dark streaks

Possible Diseases
Pith Necrosis



Sunken dark areas

Possible Diseases
Fusarium Root Rot



Brownish discoloring

Possible Diseases
Verticillium Wilt



Soft and watery white cotton like growth

Possible Diseases
White Mold

Click on a photo above to search based on one of the listed types of damage your plant may have,