e course

PESTS OF RICE (BORERS AND FOLIAGE FEEDERS) :: Integrated Pest Management in Rice

16. Rice root grub:  Arthrodeis sp., (Tenebrionidae: Coleoptera)

A. Cultural method 

  1. Remove / destroy stubbles after harvest and keep the field free from weeds.
  2. Trim and plaster the bunds of rice field to expose the eggs of grasshoppers and to eliminate the bug breeding in grasses.
  3. Form the bunds narrow and short to reduce the damage by rodents.
  4. Use resistant varieties wherever available.
  5. Provide effective drainage wherever there is problem of BPH.
  6. Clip the tip of seedlings before transplanting to prevent the carry over of egg masses of rice yellow stem borer from nursery to mainfield.
  7. Organise synchronized planting wherever possible.
  8. Leave 30 cm rogue space at every 2.5 m to reduce damage by BPH and rodents.
  9. Avoid use of excessive nitrogenous fertilizers.
  10. Use irrigation water judiciously (Alternative wetting and drying reduce BPH and case worm).
  11. Remove the egg masses of stem borer in the main field.

B. Mechanical methods

  1. Dig out the rat burrows and destroy the rats and young ones at the beginning of the season.
  2. Set up light traps to monitor and control pests.
  3. Set up-bow traps to kill rodents.

C. Biological methods

  1. Release Trichogramma japonicum twiceon 30 and 37 DAT @ 5 cc/ha/release against stem borer.
  2. Release Trichogramma chilonis on 37, 44 and 51 DAT (thrice) @ 5 cc/ha/release against leaf folder.
  3. Release of Platygaster oryzae parasitized galls @ 1 per 10 m2 in the mainfield on 10 DAT against gall midge.
  4. Set up owl perches to reduce rat damage.

D. Plant products

  1. Spray neem seed kernel extract 5% (25 kg/ha), neem oil 3% (15 lit/ha) to control brown planthopper.
  2. Spray botanicals viz., NSKE, Vitex negundo (Notchi), Prosopis juliflora and Ipomoea carnea leaf extract 5% to control earhead bug and black bug.

E. Chemical methods

    • In BPH prone area / season avoid use of synthetic pyrethroids, methyl parathion and quinalphos and use recommended chemical at recommended doses.
    • Use insecticides based on ETL.