Plant Entomology – RARDC KL

REGIONAL AGRICULTURE RESEARCH AND DEVELOPMENT CENTRE – KILINOCHCHI

PLANT ENTOMOLOGY DIVISION

Achieve excellence in Plant Entomology Research and Development on other Field crops and Horticulture crops in Northern Region.

ENTOMOLOGY AND NEMATOLOGY

Pests

  • Chilli thrips
  • Fall army worm in Maize
  • Onion caterpillar

Methodology

1 kg of Garlic soak into the 1 litre of kerosene for overnight then drain off the garlic globes and grind well and take 0.5 kg of green chilli and 0.5 kg of ginger grind into paste separately. Mix with each other and pour into 2 litre of water and filter the solution by using cloth. Then, 1 litre of 3 G solution dilute with 10 litre of water and small amount of surfactant. No 3G solution is ready for spray.

Rate of application

  • Apply 10% (V/V) of 3 G solution to the chili plant in the early morning.
  • Apply for two weeks interval.

Pest

  • Chili thrips

Methodology

10 g appetite powder mixed with 1 litre of  water and prepare the 10% (W/V) of solution.

Add small amount of surfactant before application

Rate of application

The initial application will be done at 2 weeks after planting. The solution will be sprayed immediately after preparation and early in the morning.

Pest

Amaranthus stem borer

Methodology

Take 200 g of fresh leaf and grind well

Then add 01 litre of water.

Filter the leaf extract by using cloth

Rate of application

20% W/V leaf extract solution apply directly for infected plant

Spray with weekly interval.

Pest

Amaranthus stem borer

Methodology

Take 500 g of neem seed will be taken and damage the seed coat

Then soak for 48 hours in 10 litre of water.

Filter the leaf extract by using cloth

Rate of application

5% W/V leaf extract solution apply directly for infected plant

Spray with weekly interval.

Pest

White grub in ground nut

Methodology

Collect 500 kg of green neem leaf and allow to dry in direct sunlight for 4-5 days. 

Take 150 kg of dry neem leaves and 150 kg of neem seeds grind well separately.

Mix well with each other and prepare 300 kg of  neem mixture

Rate of Application

Apply at the rate of 300 kg neem mixture per acre before planting and one month after planting and incorporate well with soil.

Pest

Fall army worm in Maize.

Methodology

Plant manioc one month before planting of maize.

Plant three rows of  maize and one row of manioc and surrounding of the field fully covered by Napier grass.

Pest

Chilli Root Knot Nematode (CRKN)

Methodologies

  1. Conservation of soil biodiversity.
  2. Sanitations.
  3. Land preparation
  4. Removing alternative weed hosts.
  5. Solarization of nursery beds
  6. Hot water treatment of soil
  7. Streaming
  8. Burning Flooding
  9. Disinfection of planting materials
  10. Novel technique
  11. Drip irrigation
  12. Crop rotation
  13. Crop residues management
  14. Nutrients management
  15. Soil amendment
  16. Bio fumigants
  17. Biological control
  18. Biological control
RESEARCH OFFICER IN CHARGE OF SECTION

MR. S. RAJESHKANNA

Assistant Director of Agriculture (Research)

Regional Agriculture Research and Development Centre

Kilinochchi