Past practices
Years ago in the Okavango, a well-known South African company
used AC500's to night-spray against Tsetse-flies.
Low-level with powerful lights.
Huge outcry from Greenies & Tree-huggers.
By reducing Tsetse, cattle farmers around the Okavango profited.
In the fifties, S-51 helicopters sprayed Northern KZN with DDT & reputedly stocks of that era still remain today. Certain people think it should be re-applied again.