Crop Protection — Insectpests Cereals Sorghum 2
- Withering and drying of central shoot “dead heart”
- Red mining in the midrib, bore holes visible on the stem near the nodes
- Tender folded leaves have parallel “shot hole”
- Egg: Scale-like flat oval eggs in batches on the under surface of leaves near the midribs
- Larva: Yellowish brown with a brown head and prothoracic shield
- Adult: Moth is medium size, straw coloured
- Sowing the lab lab/cowpea as an intercrop to minimise stem borer damage (Sorghum: Lab lab /cowpea 4:1)
- Set up of light traps till mid night to monitor, attract and kill adults of stem borer, grain midge and earhead caterpillars
- Mix any one of the following insecticides with sand to make up a total quantity of 50 kg/ha and apply in the leaf whorls:
| | | | |
| Dead heart | Holes on nodes | Shot hole | Red mining |
