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Paddy Gall Midge

Paddy Pests

Gall Midge

Symptoms


  • Maggot feeds at the base of the growing shoot
  • Feeding causes formation of a tube like gall that is similar to “onion leaf” or “Silver-shoot”.
  • Infested tillers produce no panicles
  • Egg: The fly lays elongate, cylindrical, shinning white or red or pinkish eggs singly or in clusters (2-6) at the base of the leaves.
  • Maggot: Maggot is 1 mm long after hatching with pointed anterior end. It creeps down the sheath and enters the growing bud. An oval chamber is formed round the site of feeding.
  • Pupa: At the time of emergence the pupa wriggles up the tube with the help of antennal horn to the tip of the silver shoot and projects half way out.
  • Adult: Fly is yellowish brown or orange and mosquito like. The male is ash grey in colour. Adults feed on dewdrops.
  • ETL: 10% silver shoots

    • Release Platygaster oryzae parasitised galls at 1/10 sq.m on 10 days after transplanting (DAT)
    • Harvest the crop and plough immediately
    • Remove the alternate hosts and adopt early planting
    • Optimum recommendation of potash fertilizer
    • Setup infra red light trap and monitor the adult flies
  • Spray any following insecticides

 Insecticides

Dosage

Carbosulfan 25% EC

 400ml/acre

Thiamethoxam 25% WG

200g/acre

 Chlorpyriphos 20% EC

500ml/acre

  • Maggot feeds at the base of the growing shoot
  • Feeding causes formation of a tube like gall that is similar to “onion leaf” or “Silver-shoot”.
  • Infested tillers produce no panicles
  • Egg: The fly lays elongate, cylindrical, shinning white or red or pinkish eggs singly or in clusters (2-6) at the base of the leaves.
  • Maggot: Maggot is 1 mm long after hatching with pointed anterior end. It creeps down the sheath and enters the growing bud. An oval chamber is formed round the site of feeding.
  • Pupa: At the time of emergence the pupa wriggles up the tube with the help of antennal horn to the tip of the silver shoot and projects half way out.
  • Adult: Fly is yellowish brown or orange and mosquito like. The male is ash grey in colour. Adults feed on dewdrops.
  • ETL: 10% silver shoots

    • Release Platygaster oryzae parasitised galls at 1/10 sq.m on 10 days after transplanting (DAT)
    • Harvest the crop and plough immediately
    • Remove the alternate hosts and adopt early planting
    • Optimum recommendation of potash fertilizer
    • Setup infra red light trap and monitor the adult flies
  • Spray any following insecticides

 Insecticides

Dosage

Carbosulfan 25% EC

 400ml/acre

Thiamethoxam 25% WG

200g/acre

 Chlorpyriphos 20% EC

500ml/acre


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