TNAU Agritech Portal
Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications| Contact
Crop Protection :: Custard Apple
Fruit fly: Bactrocera zonata

Symptoms of damage

  • Maggot bore into the semi ripened fruits
  • Feed on the inside fruits
  • Affected fruits gets shriveled, malformed, rot and fall off

Identification of pest:

  • Larva: Yellowish apodous maggots
  • Adult: Light brown with transparent wing

Management:

  • Collect fallen infested fruits and dispose them by dumping in a pit and covering with soil
  • Provide summer ploughing to expose the pupa
  • Immersion of fruits in hot water (45 to 47 °C) for 60 minutes to kill eggs and maggots
  • Monitor the activity of flies with methyl eugenol sex lure traps.
  • Use bait spray combing any one of the insecticides and molasses or jaggery 10 g/l,
    • Fenthion 100 EC 1ml/l
    • Malathion 50 EC 2 ml/l
    • Dimethoate 30 EC 1 ml/l
    • Carbaryl 50 WP 4 g/l
  • two rounds at 2 weeks interval before ripening of fruits
  • Prepare bait with methyl eugenol 1% solution mixed with malathion 0.1%.
  • Take 10 ml of this mixture per trap and keep them in 25 different places in one hectare
  • Spray 0.1% malathion 50 EC at 1ml/lit
  • Field release of natural enemies Opius compensates and Spalangia philippines

 

http://www.cdfa.ca.gov/phpps/pdep/images/pfflarge.jpg
Larva Adult

Home | About Us | Success Stories | Farmers Association | Publications | Contact Us

© 2015 TNAU. All Rights Reserved.