There are different types of stem borers. Caterpillars that bore into stem cause the damage and feed internally causing the death of central shoot known as “Dead Heart”. Affected plants produce white chaffy earhead at flowering stage. Just after hatching larvae migrates between the leaf sheaths where they are protected from natural enemies and insecticidal sprays.
- Plough and destroy the stubbles after harvest, collect and destroy egg masses in nursery plants.
- Clip off the leaf tips and burn to kill eggs or larvae preventing them from carrying into the main field.