Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Peas > Stem discolored tan to brown
Peas > Stem > Stem discolored tan to brown
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Mycosphaerella Blight
Mycosphaerella pinodes and Phoma medicaginis var. pinodella
- Seedling stem turn dark brown to black, often near the soil line, seedlings may be killed or grow weakly
- Small dark flecks on stems, leaves and pods
- Leaf spots grow into round brown spots with several concentric rings like a bull's eye
- Purplish black lesions on stems
- More information on managing diseases in the home vegetable garden
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White Mold
Sclerotinia sclerotiorum
- Stems, leaves and pods develop a soft watery rot
- White fluffy fungal growth appears on infected plant parts
- If the stem is girdled it turns dry and tan, the plants wilts
- Inside dead stems are hard black sclerotia
- Symptoms appear when plants flower
- Common in densely planted, or low lying fields
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Aphanomyces Root Rot
Aphanomyces euteiches
- Pea shoots are yellow, stunted and may wilt
- The stem is brown and soft at the soil line
- Roots have brown soft rotten spots
- Most common in heavy wet soils
