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Crop Protection :: Pests of Tapioca

Cassava mealy bug: Paracoccus marginatus

Symptoms of damage:

  • Sucking of sap at cassava shoot tips, on the lower surface of leaves, and on stems. During feeding it injects a toxin into the cassava plant
  • Causing deformation of terminal shoots, which become stunted
  • Resulting in compression of terminal leaves into "bunchy tops"
  • Length of internodes is reduced, and stems are distorted

Identification of pest:

  • Cassava mealy bug is pinkish in colour
  • Its body is surrounded by very short filaments, and covered with a fine coating of wax.
Paracoccus marginatus

Management:

  • Spray malathion or fenitrothion @1ml/ha

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