Plant Disease Photo Index


Angular Leaf Spot
Cucumbers infected with angular leaf spot.

 

  

Anthracnose
Tomatoes infected with anthracnose.

 

Bacterial Blight
Symptoms of bacterial blight on a pea leaf.

 

Bacterial Spot
Pepper with bacterial spot infection.

 

Bacterial Wilt
A melon vine suffering from bacterial wilt.

 
Black Rot
Black rot bacteria enter leaves
via natural openings in leaf margins.

 
Blossom End Rot
Banana pepper with blossom end rot lesion.

 
Catface
Advanced stages of catface.

 
Clubroot
Wilted head of cabbage infected with clubroot fungus.

 
Corn Leaf Blight
The infection does not usually kill the plant, but weakens it,
making it more susceptible to other diseases.

 
Corn Smut
Ear showing late stage of corn smut.

 
Downy Mildew
Melon vines show characteristic mottling from downy mildew.

 
Early Blight
Closeup view of characteristic concentric ring pattern.

 
Late Blight
This fungus disease attacks tomatoes and potatoes at any
stage of growth.

 
Nematodes
Susceptible pepper plant roots with extensive galling
(thickened, lumpy portions) are heavily infested
by the southern root-knot nematode.

 
Phytophthora Fruit Rot
Pumpkin with characteristic array of phytophthora symptoms.

 
Potato Scab
Potatoes with a bad case of scab.

 
Powdery Mildew
Squash leaf with severe mildew growth.

 
Septoria Leaf Spot
Various stages of septoria infection.

 

Various stages of septoria infection.
Viruses
Cucumber fruit show typical mottling caused by
cucumber mosaic virus.

 
White Mold
Bean vines and pods with extensive white mold growth.