Re: "drone was attacked by the hornets while being used [..] to locate the creatures' nest"
The problem is preventing the existing insect species also exposing themselves to the Fipronil.
Perhaps someone could use machine learning of these hornets, sorta like hotdog not hotdog
but with images of the hornets. A camera on a dual baited switchable food dispenser (one benign, the other poisoned) could use such a system where only the Asian Hornets receive the poisoned trough?