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Diseases and nematodes are profit parasites.

Soybean Crop

Mississippi Farmers

Can Protect Their Fields

Diseases and nematodes can and will destroy soybeans if left unattended or never recognized at all. You could be left with far less yield than planned for. But you aren’t in this alone. The Mississippi Soybean Promotion Board aims to help farmers identify and control damaging diseases and nematodes before it’s too late.


By the numbers

The Damage Done in 2017

$113.2 million

The approximate amount MS soybean farmers lost to diseases and nematodes


Estimated loss of yield for MS soybean farmers due to diseases and nematodes in 2017.

4.23 Million

Number of bushels MS soybean farmers lost to the top three yield-limiting diseases.

What to Detect and Protect Against

These are the diseases and nematodes to be aware of if you’re a Mississippi soybean farmer. Diseases per year are greatly influenced by environment, and therefore, a disease that causes yield loss in one particular year may not be an issue the next depending on the conditions for that year. Diseases listed below are based on recent growing seasons. Want more? Download your free Diseases and Nematode Scouting Guide.

Diseases in Mississippi Fields

Major Threats

Cercospora Leaf Blight

Frogeye Leaf Spot

Frogeye Leaf Spot

Septoria Brown Spot

Septoria Brown Spot

Charcoal Rot Microsclerotia

Charcoal Rot*

Minor Threats

Phytophthora Root and Stem Rot  |  Purple Seed Stain  |  Aerial Web Blight  |  Southern Blight  |  Soybean Rust  |  Stem Canker**  |  Sudden Death Syndrome (SDS)  |  Taproot Decline – NEWER Disease  |  Target Spot  |  Pythium Root Rot***  |  Phomopsis*

Nematodes in Mississippi Soil

Rkn Galling

Root-Knot Nematode (RKN)

Reniform Injury

Reniform Nematode (RN)


Soybean Cyst Nematode (SCN)

*Impacted by growing/weather conditions
**Resistant varieties available

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