Crop Protection
Diseases and Plant Protection in Rice Farming
The crop is attacked by a number of diseases at different stages of growth and storage. Some of them are as under.
1. Blast: Caused by Fungii
Symptoms
- Spindle-shaped spots on leaves with grey centers.
- Nodes rot turning black and thus breaks.
- Neck of the panicle rot
- Grains are chaffy
This disease can affect the crop at all the growing stages- nursery, tillering and flowering.
Management- Soak the seeds in carbendazim for 12 hours before sowing.
- Avoid a heavy dose of nitrogen fertilizer.
- During transplantation, the roots must be dipped in carbendazim solution immediately upon uprooting.
- Use resistant varieties.
2. Bacterial Blight: Caused by Bacteria
Symptoms
- Yellow to white lesions along the margin gradually spreading around the whole leaf.
- Spreads fast in case of winds, incessant rain and warm temperature.
- Infection occurs during transplantation.
This disease can affect the crop at all the growing stages- nursery, tillering and flowering.
Management- Avoid nitrogen fertilizers in excess.
- Soak the seeds in Streptocycline for 12 hours before planting.
- Affected crops are sprayed with Agrimycin 100.