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Navigation BulletAbout the Department
Navigation BulletField Seed Program
Navigation BulletPotato Program
Navigation BulletRegulatory Program
Navigation BulletDiagnostic Lab
Navigation Spacer- Seed Health Tests
Navigation Spacer- Barley Loose Smut
Navigation Spacer- Bean Anthracnose
Navigation Spacer- Bean Bacterial
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Navigation Spacer- Pulse Crop
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Navigation Spacer- Soybean Bacterial
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 Navigation Spacer- Genetic Tests
Navigation Spacer- Genetic Purity TestNavigation Spacer - Variety ID Testing
Navigation Spacer- Testing for
Navigation SpacerAdventitous
Navigation SpacerPresence

Navigation Spacer- Potato Tests
Navigation Spacer- Potato Virus
Navigation SpacerTesting
Navigation Spacer- Potato GMO
Navigation SpacerTesting

Navigation Spacer- Sample Sizes
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Navigation Spacer- Seed Testing Links
Navigation BulletSeed Lab
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Soybean Bacterial Blight

Bacterial blight is an important bacterial disease of soybean. This disease is seed transmitted and is most prevalent during cool, wet growing conditions.

Bacterial blight symptoms include water lesions that are found on leaves and other plant parts including pods. These lesions develop a brown or yellowish color on leaves. Pods develop water lesions that later change color to brown. Seed are infected and become discolored, shriveled, and may develop lesions.

Effective control measures include:
The Seed Department conducts a soybean bacterial blight test using 5,000 seed. Sample extracts are isolated and tested for the presence of blight by using a plating technique. This test is typically completed in four to five days and results are reported as positive or negative.

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