Not. It is part of Nature. This is highly useful as an ecosystem service as they very effectively clean up any carrion that is missed or left over any from larger scavengers.
As far as I know maggot (blowfly larvae) is widely used - here around it is quite common - as bait for fishing. Mostly for bream or carp.
I wondered if I can use this larvae in fly fishing or nymph fishing.
The first question was if it is natural food of fishes. Looking after information about life and habits of blowfly, I can easily imagine situations where blowfly larvae can fall in water from carrion. Some possible cases: nest between branches of a riverside tree/bush with dead nestlings, or drowned wild animals stuck between branches after a flood.
So the answer was yes, it is natural food of fishes. I guess it isn't as common food as stone-fly nymphs or such, but it is definitely an easy energy source for them if a mentioned case happen.
So lets try to tie it.
Step 1: Materials needed
- Size #14 scud type hook
- Lead foil
- UNI-Thread 3/0, White (I used previously UNI-Strech thread, both are good)
- Black and yellow permanent markers (waterproof ones)
- Clear nail polish or UV resin
- Fly tying vice and bobbin