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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Carrot > Depressions

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Carrot > Root > Depressions

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  • Image: Cavity Spot 1
  • - CLICK PHOTO TO ENLARGE -

Cavity spot
Pythium spp.

  • Random, dark elongated cavities run across the width of the carrot root
  • Lesions start as small black shallow depressions and enlarge as the carrot matures
  • Leaves show no symptoms
  • More information on Cavity Spot...
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  • Image: Pythium Root Dieback 1
  • - CLICK PHOTO TO ENLARGE -

Pythium root dieback
Pythium spp.

  • Horizontal lesions (1/10 cm to 1 cm) may appear on the surface of the root
  • Carrot root is short stunted and may be forked or misshapen
  • Carrot top may yellow and wilt if root damage is severe
  • Common in heavy wet soils and organic soils
  • More information on Pythium root dieback...
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  • Image: Bacterial Soft Rot 1
  • Image: Bacterial Soft Rot 2

Bacterial soft rot
Erwinia carotovora subsp. Carotovora

  • Rotted sections of the root may dissolve into liquid when carrots are pulled
  • Dark sunken, soft mushy cavities may form in the root
  • Eventually part or all of the root becomes soft, watery, and slimy
  • When root damage is severe, leaves turn yellow and wilt
  • A foul odor may be present with the rot
  • Common in very wet heavy soils
  • More information on Bacterial soft rot...

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