Pest Management
PEST MANAGEMENT IN TREE CROPS
EUCALYPTUS

Eucalyptus gall wasp Leptocybe invasa


Biology

  • Adult wasp is brown in colour with slight blue to green metallic shine
  • Larva develops inside the midrib or petiole or stem axis
  • Life cycle from egg to adult (130 days)

Nature of damage

  • Characteristic cylindrical gall develops on young stem or petioles or midrib
  • Damage to growing shoot tip and quick abscission of leaves and drying of shoots
  • Infested growing shoot terminals and midrib enlarge in thickness and leaves contorted appearance

 Management

  • Providing nutritional supplements like salicylic acid @ 500 ppm and vermiwash @ 50 ml /root trainer or DAP @ 10gm/lit of water
  • Use of yellow and green coloured sticky traps
  • Spraying of Imidacloprid @ 1ml/lit or dimethoate @ 2ml/lit

Termite Odontotermes sp.
Biology

  • Cream coloured, tiny insects resembling ants with dark coloured head

Nature of damage

  • Causes ring barking of the tap root resulting in death of the plants

Management

  • Avoid water stress conditions
  • Soil drenching with Chlorpyriphos 25 EC – 2ml/lit

 

 

 

 

Eucalyptus gall wasp

 

Adult

Galled leaf

 

Termite

 


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