Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Beet > Spots/blotches on root
Beet > Root > Spots/blotches on root
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Root rot complex
Pythium spp., Rhizoctonia solani, Aphanomyces
cochlioides, and Phoma betae
- Beet root may be soft and rotten
- Beet roots may develop dark sunken lesions on surface of root
- Leaves may appear first red colored, then yellow and wilted
- Fluffy, white to grayish brown fungal growth may be present on rotted areas of the root
- More information on Root Rot Complex
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Potato scab
Streptomyces scabies
- Beet roots develop corky spots on the surface
- More common in acid soils (>5.2)
- More information on Potato Scab
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Boron deficiency
- Beet root develops black spots inside, and black dry-rot areas on the root surface
- Dead cross-hatched areas may appear on the inner concave surface of leaf stalks
- New leaves are elongated and malformed, growing more on one side than the other
- New leaves turn brown and die
- More common in alkaline soils
- Symptoms develop mid to late in the season
- More information on Boron Deficiency
