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Crop Protection :: Oil Seeds :: Pest of Coconut

Coconut Eriophyid mite: Aceria guerreronis

Symptoms of damage

  • Triangular pale or yellow patches close to perianth
  • Necrotic tissues
  • Brown colour patches, longitudinal fissures and splits on the husk
  • Oozing of the gummy exudation from the affected surface
  • Reduced size and copra content
  • Malformed nuts with cracks and hardened husk

Identification of the pest

  • Nymph and Adult: Pale in colour with elongate body and worm like appearance

Management

  • Apply urea 1.3 kg, super phosphate 2.0 and muriate of potash 3.5 kg/palm/year
  • Neem cake @5 kg and organic manure 50 kg/palm/year
  • Borax 50 g + gypsum 1.0 kg + Manganese sulphate 0.5 kg/palm/year
  • Grow intercrop (sun hemp, four crops/year) and shelter belt with casuarina all round the coconut garden to check further entry
  • Triazophos 40 EC 5 ml/lit or  carbosulfan 25 EC 2 ml/lit in alternation with neem azal 1% 5ml/lit as spot application
  • Root feeding
  • Root feeding with TNAU - Agro Biocide 30 ml/tree
  • TNAU - Agro biocide - 30 ml/tree - (60 days after Carbosulfan root feeding).              
  • Triazophos 40 EC @15 ml or carbosulfan 25EC @ 15 ml / 15 ml of water
  • After root feeding, next harvest should be done 45 days later
Eriophyid mite damage in young developing buttons
Eriophyid mite affected coconut


 
Root feeding used by coconut tonic

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