Pest and Disease Attack on Paddy Crops! Timely Measures Can Prevent Heavy Losses

Krishi Dunia

• 28 Sep, 2025 11:59 AM IST ,
• Updated Sun, 28 Sep 2025 12:05 PM

Paddy crops are currently facing a surge in sucking pests such as hoppers, leaf folders, and other insect infestations, along with several disease outbreaks. Experts warn that if the pest population crosses the Economic Threshold Level (ETL), farmers must immediately apply the recommended insecticides or fungicides. Importantly, only one pesticide or fungicide should be sprayed at a time.

Major Pests in Paddy and Their Economic Threshold Level (ETL)

Pest Management in Paddy

1. Stem Borer – Chlorantraniliprole 18.5 SC (125 ml) or Cartap Hydrochloride 4G (20 g).
2. Brown/Green Planthopper – Dinotefuran 20% SG (200 g) or Pymetrozine 50% WG (300 g).
3. Leaf Folder – Chlorpyrifos 50 EC (1.25 L) or Profenofos 50 EC (1.25 L).
4. Gundhi Bug – Thiamethoxam 25% WG (125 g) or Imidacloprid 17.8 SL (250 ml).

 All insecticides should be mixed in 500 liters of water per hectare and applied as a spray. Use only one insecticide at a time.

Control of Bacterial Leaf Blight in Paddy

• This disease appears as yellow or straw-colored wavy lesions on leaves, spreading from the edges downwards.
• For control, apply:
  1. Copper Oxychloride 50 WP + Streptocycline (1000 ppm) + 25 g
  2. Copper Oxychloride 45 WP + Kasugamycin 5% (700 ml)

 Use only one fungicide at a time.

Urea and Nano Urea Application in Paddy

1. Urea Spray
   • 30–35 days after transplanting: 50–70 kg per acre
   • 60–65 days (booting stage): 30–40 kg per acre
2. Nano Urea Spray
   • At 40–45 days crop stage: Mix 500 ml Nano Urea in 125 liters of water per acre and spray.
   • Do not mix Nano Urea with any pesticide or fungicide.

Conclusion

Effective pest and disease management in paddy requires timely intervention with the right insecticides, fungicides, and nutrients. Farmers should closely monitor their crops and take action only when pests reach the economic threshold level. With proper care and well-timed sprays, paddy crops can be protected, ensuring higher yields and reduced losses.