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Bacterial Blight

Brown Spot

Soybeans with Phytophthora root rot

Brown spot vs. bacterial blight

Soybeen seedling disease

Asian Soybean Rust

Black Cutworm Damage

Bean Leaf Beetle Damage

Bean Pod Mottle Virus

Brown Spot

Brown Stem Rot

Stem Canker

Cercospora Leaf Spot

Charcoal Rot


Downy Mildew

False Chinch Bug Damage

Frogeye Leaf Spot

Green Cloverworm Damage

Growth Regulator Injury

Hail Damage

Herbicide Injury

Imported Longhorned Weevil Damage

Iron Chlorosis

Japanese Beetle Damage

Potassium Deficiency

Soybean Leafminer Damage

Mesotrion Injury


Phyllosticta leaf spot

Prosulfuron (Exceed) Injury

Root Rot

Soybean Cyst Nematode

Seedling Blight

Sudden Death Syndrome

Seed Rot

Soybean Mosaic Virus

Soybean Aphid Symptoms

Spider Mite Damage

Stem Rot

Top Dieback

Variegated Cutworm Damage

White Mold


Iowa State University


Entomology Image Gallery > Plant Diseases and Damage > Soybean

Brown spot vs. bacterial blight

Comparison of brown spot (left) and bacterial blight (right) in soybean.

Brown spot vs. bacterial blight

This image appears in the following articles:

Early season foliar diseases of soybeans (July 1996)
Soybean foliar diseases appearing (July 1997)
Soybean disease scouting in July (July 2001)
Soybean brown spot and bacterial blight (July 2003)
Soybean diseases to scout in July (July 2004)

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Iowa State University Entomology Department. Last modified 7/7/04 by John VanDyk.