- The damage is caused by hundreds of these bugs attaching themselves to the succulent stems and sucking plant sap.
- Drainage of sap affects the growth and makes the plant stunted.
- .In many cases no ear heads are produced and infested field show isolated patches of stunted and sickly looking plants.
- When the outer sheath of infected stem is drawn apart numerous bugs in all stages are seen attached to the stem.
Randomly mark 4 one sq.meter area per 0.4 Ha. Calculate the % of infested plants.