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Root maggot

Root maggot

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Root maggot

Scientific name – Plutella xylostella

Monitoring

Monitoring

  • Regular field visit to observe DBM
  • Monitoring to detect feeding damage, green larvae, pupae in cocoons on leaves
  • Use of light trap to detect the presence of the pest
  • Apply insecticides, at the first sign of damage

Control (Chemical)

Control (Other)

  • Use of light traps
  • Hand picking of larva and pupa at very early stages
  • Use botanicals such as neem seed water extract

Prevention

  • Destruction of crop residues of all crucifers
  • Soil treatment (ploughing 15-20cm, solarisation)
  • Use moderately tolerant variety AS cross
  • Healthy planting materials.
  • Use of organic manure to improve soil
  • Border crop with Mustard as a trap crop
  • Inter crop with Tomato as a repellent crop
  • Use of Sprinkler irrigation
  • Use recommended fertilizers. (Avoid excessive amount of nitrogen )
  • Conservation of natural vegetation in the system to conserve natural enemies.

Direct Control

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Prevention

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  • Destruction of crop residues of all crucifers
  • Soil treatment (ploughing 15-20cm, solarisation)
  • Use moderately tolerant variety AS cross
  • Healthy planting materials.
  • Use of organic manure to improve soil
  • Border crop with Mustard as a trap crop
  • Inter crop with Tomato as a repellent crop
  • Use of Sprinkler irrigation
  • Use recommended fertilizers. (Avoid excessive amount of nitrogen )
  • Conservation of natural vegetation in the system to conserve natural enemies.

The project for Promotion of Safe and Appropriate Use of Pesticides and Fertilizers in Sri Lanka

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