are prevented from attacking a rice caseworms because their eggs are laid in the water and their larvae remain in cases floating in the water.
Cultural and management practices
- Early planting, wider spacing (30 × 20 mm), and by splitting the nitrogen application during the rice 3 growth stages can reduce rice caseworm
- Draining the field at regular intervals (one month after transplanting), using older seedlings as transplanting materials, and/or ratooning can also help control caseworm. Caseworm is found only in irrigated and rainfed areas. It is more prevalent during rainy seasons.