Pests of Wood apple

Major pests of Wood apple are:-

1.Fruit borer: Deudorix isocrates

wood apple fruit borer

Symptoms of damage:

  • Caterpillar bores into young fruits and feeds on internal contents (pulp and seeds)
  • Fruit rotting and dropping

Identification of pest:

  • Larvae: Dark brown, short and stout, covered with short hairs
  • Adult: Bluish brown butterfly, female has V shaped patch on forewing


ETL: 5 eggs/plant

  • Collect and destroy damaged fruits
  • Clean cultivation as weed plants serve as alternate hosts
  • Endemic areas – grow less susceptible varieties
  • Cover the fruit with polythene bags when the fruits are up to 5 cm
  • Use light trap @ 1/ ha to monitor the activity of adults
  • Malathion 50 EC 0.1% or two rounds, one at flower formation and next at fruit set
  • Flowering stage – spray NSKE 5% or neem formulations 2 ml/l
  • Apply dimethoate 30 EC 1.5 ml/l
  • Release Trichogramma chilonis at one lakh/acre


2.Citrus butterfly: Papilio demolious

Symptoms of damage:

  • Caterpillar feed on the leaves
  • Defoliation

Identification of pest:

  • Larvae: Early stage larva resembles bird dropping. Grown up larva – cylindrical, stout, green and brown lateral bond
  • Adult: Dark brown swallowtail butterfly with numerous yellow marking


  • Hand pick the larvae and destroy
  • Early stage – spray 2 ml of methyl parathion per litre of water
  • Field release of parasitoids Trichogramme evanescens and Telenomus sp on eggs of Brachymeria sp on larvae and Pterolus sp. on Pupae.



  • TamilNadu Agritech Portal


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