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Crop Protection :: Cash Crop :: Pest of Cotton

Mealy bugs: Phenacoccus sp, Ferrisa spand  Maconellicoccus sp 

Symptom of damage

  • Heavy clustering of mealy bugs usually seen under surface of leaves as a thick mat with waxy secretion
  • Excrete copious amount of honey dew on which the fungus sooty mould grow
  • Affected plants appear sick and black, resulting reduced fruiting capacity

Management

  • Remove the alternate weeds hosts
  • Monitor the incidence regularly and look for crawler emergence
  • Take up the management at intial stage to get maximum control
  • Wherever necessary use neem based botanical insecticides such as neem oil 2% or NSKE 5% orfish oil rosin soap 25g/litre of water
  • Use of Encyrtid parasitoids, Acerophaguspapayae@ 100 per village against Paracoccusmarginatusand Aenasiusbambawaeliagainst Phenococcussolenopsisare recommended
  • Use of dimethoate or profenophos  2 ml/lit may be adopted as an alternative

 


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