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Horticultural crops :: Vegetables:: Beetroot

Leaf SpotCercospora beticola

Symptoms

  • This is a commonly occurring disease on foliage of beet roots. High humidity usually favours the spread of this disease.
  • Numerous small circular spots appear on the leaf surface. The spots increase in size, becoming brownish or purplish in color.
  • Individual spots are usually circular but several may coalesce into larger areas of dead tissue.
  • The spots dry up giving a shot-hole appearance to the leaves. In case of severe infection spots cover the entire leaf surface resulting in pre-mature death and dropping of the leaves.
  • As leaves die, the crown becomes cone-shaped with a rosette of dead leaves at the base.
  • Defoliation occurs throughout the growing season resulting in reduction in root size and yield. Older leaves are mostly affected.

Management

  • Removal and destruction of affected plants and practicing crop rotation are beneficial in controlling the disease.
  • Spraying with Copper oxychloride (0.3 %) thrice at an interval of 15 days controls the disease effectively.

 


Symptom

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