Notation	Name	Description	Status
0	Hoppers only, mainly in bands or clusters		stable
1	Winged adults in the vicinity more than 10 kilometres from point of observation		stable
2	Locusts in flight, a few seen at the station		stable
3	Locusts at the station, most of them on the ground		stable
4	Locusts, some on ground and others in flight at a height less than 10 metres		stable
5	Locusts, some on ground and others in flight at a height greater than 10 metres		stable
6	Locusts, most in flight at a height less than 10 metres		stable
7	Locusts, most in flight at a height greater than 10 metres		stable
8	Locusts, all over inflicting severe damage to vegetation, no extermination operation		stable
9	Locusts, all over inflicting severe damage to vegetation, extermination operation in progress		stable
15	Missing value		stable