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Beet > Root > Spots/blotches on root

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  • Image: Root Rot Complex 1
    Credit: Howard F. Schwartz, Colorado State University, Bugwood.org
  • Image: Root Rot Complex 2

    Credit: Howard F. Schwartz, Colorado State University, Bugwood.org

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green arrowRoot 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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  • Image: Potato Scab 1
    Credit: Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org
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green arrowPotato Scab
Streptomyces scabies

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  • Image: Boron Deficiency 1
    Credit: Department of Plant Pathology, Penn State Univ.
  • Image: Boron Deficiency 2

    Credit: Department of Plant Pathology, Penn State Univ.

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green arrowBoron 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

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