Have a look at this:
https://www.channel4.com/news/huge-s...rts-from-kenya
For reasons that are not clear, East Africa, particularly Kenya, has a serious locust problem which could cause a major famine. They do have at least one crop sprayer but my guess is that when a swarm is spotted, half a dozen a/c are called for. This is a serious matter. An approach to Mr Kinoti Maretethe at the Ministry of Agriculture, might unlock a lot of funds and resources.