N67K is registered to an aviation services contractor called Dynamic Aviation, which has a long history of flying aircraft configured for intelligence, surveillance, and reconnaissance missions on behalf of the U.S. military in conflict zones around the world, as well. [...] However, this particular A90 is configured for an entirely different type of mission, one that involves dropping loads of sterile flies. [...]
SIT involves aircraft releasing male insects, which are bred in captivity and then irradiated, making it impossible for them to reproduce, over an affected area. Females then make futile attempts to mate with them. The relatively short life span of most insects means there is then a good chance that they will die before finding a fertile mate. [...]
The flies are then bred in a controlled environment until they have "reached peak sexual maturity," according to the CDFA website. Then they are chilled and packaged for delivery to Dynamic's crews.
"Peak sexual maturity and chill."